diff --git a/config.json b/config.json
index bf9df02b3..f207c4de5 100644
--- a/config.json
+++ b/config.json
@@ -1869,6 +1869,14 @@
           "lists"
         ],
         "difficulty": 10
+      },
+      {
+        "slug": "paasio",
+        "name": "PaaS I/O",
+        "uuid": "81177978-2ed3-47c2-a6a0-fef316d94c0b",
+        "practices": [],
+        "prerequisites": [],
+        "difficulty": 1
       }
     ],
     "foregone": [
diff --git a/exercises/practice/paasio/.docs/instructions.md b/exercises/practice/paasio/.docs/instructions.md
new file mode 100644
index 000000000..595644748
--- /dev/null
+++ b/exercises/practice/paasio/.docs/instructions.md
@@ -0,0 +1,13 @@
+# Instructions
+
+Report network IO statistics.
+
+You are writing a [PaaS][paas], and you need a way to bill customers based on network and filesystem usage.
+
+Create a wrapper for network connections and files that can report IO statistics.
+The wrapper must report:
+
+- The total number of bytes read/written.
+- The total number of read/write operations.
+
+[paas]: https://en.wikipedia.org/wiki/Platform_as_a_service
diff --git a/exercises/practice/paasio/.meta/config.json b/exercises/practice/paasio/.meta/config.json
new file mode 100644
index 000000000..ffb5f58f5
--- /dev/null
+++ b/exercises/practice/paasio/.meta/config.json
@@ -0,0 +1,17 @@
+{
+  "authors": [],
+  "files": {
+    "solution": [
+      "src/main/java/Paasio.java"
+    ],
+    "test": [
+      "src/test/java/PaasioTest.java"
+    ],
+    "example": [
+      ".meta/src/reference/java/Paasio.java"
+    ]
+  },
+  "blurb": "Report network IO statistics.",
+  "source": "Brian Matsuo",
+  "source_url": "https://github.com/bmatsuo"
+}
diff --git a/exercises/practice/paasio/.meta/src/reference/java/Paasio.java b/exercises/practice/paasio/.meta/src/reference/java/Paasio.java
new file mode 100644
index 000000000..cd5c3e276
--- /dev/null
+++ b/exercises/practice/paasio/.meta/src/reference/java/Paasio.java
@@ -0,0 +1,140 @@
+import java.io.*;
+
+public class Paasio implements Closeable {
+
+    private long bytesRead;
+    private long readOperationCount;
+    private long bytesWritten;
+    private long writeOperationCount;
+
+    private final InputStream inputStream;
+    private final OutputStream outputStream;
+
+    public Paasio(InputStream inputStream, OutputStream outputStream) {
+        this.inputStream = inputStream;
+        this.outputStream = outputStream;
+    }
+
+    public int read() throws IOException {
+        int byteData = inputStream.read();
+        if (byteData != -1) {
+            bytesRead += 1;
+            readOperationCount++;
+        }
+        return byteData;
+    }
+
+    public int read(byte[] b) throws IOException {
+
+        int totalBytesRead = inputStream.read(b);
+        if (totalBytesRead != -1) {
+            bytesRead += totalBytesRead;
+            readOperationCount++;
+        }
+        return totalBytesRead;
+
+    }
+
+    public int read(byte[] b, int off, int len) throws IOException {
+
+        int bytesReadIntoBuffer = inputStream.read(b, off, len);
+
+        if (bytesReadIntoBuffer != -1) {
+            bytesRead += bytesReadIntoBuffer;
+            readOperationCount++;
+        }
+        return bytesReadIntoBuffer;
+
+
+    }
+
+    public byte[] readAllBytes() throws IOException {
+
+        byte[] allData = this.inputStream.readAllBytes();
+
+        if (allData.length > 0) {
+            readOperationCount++;
+            bytesRead += allData.length;
+        }
+        return allData;
+
+    }
+
+    public byte[] readNBytes(int len) throws IOException {
+
+        byte[] allData = this.inputStream.readNBytes(len);
+        if (allData.length > 0) {
+            readOperationCount++;
+            bytesRead += allData.length;
+        }
+        return allData;
+    }
+
+    public void write(int b) throws IOException {
+
+        try {
+            this.outputStream.write(b);
+            writeOperationCount++;
+            bytesWritten++;
+
+        } catch (IOException ioException) {
+            ioException.printStackTrace();
+        }
+
+    }
+
+    public void write(byte[] b) throws IOException {
+        try {
+
+            this.outputStream.write(b);
+            writeOperationCount++;
+            bytesWritten += b.length;
+
+
+        } catch (IOException ioException) {
+            ioException.printStackTrace();
+        }
+    }
+
+    public void write(byte[] b, int off, int len) throws IOException {
+        try {
+            this.outputStream.write(b, off, len);
+            writeOperationCount++;
+            bytesWritten += len;
+
+        } catch (IOException ioException) {
+            ioException.printStackTrace();
+        }
+    }
+
+    public long getBytesRead() {
+        return bytesRead;
+    }
+
+    public long getReadOperationCount() {
+        return readOperationCount;
+    }
+
+    public long getBytesWritten() {
+        return bytesWritten;
+    }
+
+    public long getWriteOperationCount() {
+        return writeOperationCount;
+    }
+
+    @Override
+    public void close() throws IOException {
+        if (this.inputStream != null) {
+            this.inputStream.close();
+        }
+        if (this.outputStream != null) {
+            this.outputStream.close();
+        }
+    }
+
+}
+
+
+
+
diff --git a/exercises/practice/paasio/build.gradle b/exercises/practice/paasio/build.gradle
new file mode 100644
index 000000000..d28f35dee
--- /dev/null
+++ b/exercises/practice/paasio/build.gradle
@@ -0,0 +1,25 @@
+plugins {
+    id "java"
+}
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    testImplementation platform("org.junit:junit-bom:5.10.0")
+    testImplementation "org.junit.jupiter:junit-jupiter"
+    testImplementation "org.assertj:assertj-core:3.25.1"
+
+    testRuntimeOnly "org.junit.platform:junit-platform-launcher"
+}
+
+test {
+    useJUnitPlatform()
+
+    testLogging {
+        exceptionFormat = "full"
+        showStandardStreams = true
+        events = ["passed", "failed", "skipped"]
+    }
+}
diff --git a/exercises/practice/paasio/gradle/wrapper/gradle-wrapper.jar b/exercises/practice/paasio/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 000000000..e6441136f
Binary files /dev/null and b/exercises/practice/paasio/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/exercises/practice/paasio/gradle/wrapper/gradle-wrapper.properties b/exercises/practice/paasio/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 000000000..b82aa23a4
--- /dev/null
+++ b/exercises/practice/paasio/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.7-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
diff --git a/exercises/practice/paasio/gradlew b/exercises/practice/paasio/gradlew
new file mode 100644
index 000000000..1aa94a426
--- /dev/null
+++ b/exercises/practice/paasio/gradlew
@@ -0,0 +1,249 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
+APP_HOME=$( cd "${APP_HOME:-./}" > /dev/null && pwd -P ) || exit
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    if ! command -v java >/dev/null 2>&1
+    then
+        die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Collect all arguments for the java command:
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+#     and any embedded shellness will be escaped.
+#   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
+#     treated as '${Hostname}' itself on the command line.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"
diff --git a/exercises/practice/paasio/gradlew.bat b/exercises/practice/paasio/gradlew.bat
new file mode 100644
index 000000000..93e3f59f1
--- /dev/null
+++ b/exercises/practice/paasio/gradlew.bat
@@ -0,0 +1,92 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%"=="" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if %ERRORLEVEL% equ 0 goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 0 goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/exercises/practice/paasio/src/main/java/Paasio.java b/exercises/practice/paasio/src/main/java/Paasio.java
new file mode 100644
index 000000000..cd5c3e276
--- /dev/null
+++ b/exercises/practice/paasio/src/main/java/Paasio.java
@@ -0,0 +1,140 @@
+import java.io.*;
+
+public class Paasio implements Closeable {
+
+    private long bytesRead;
+    private long readOperationCount;
+    private long bytesWritten;
+    private long writeOperationCount;
+
+    private final InputStream inputStream;
+    private final OutputStream outputStream;
+
+    public Paasio(InputStream inputStream, OutputStream outputStream) {
+        this.inputStream = inputStream;
+        this.outputStream = outputStream;
+    }
+
+    public int read() throws IOException {
+        int byteData = inputStream.read();
+        if (byteData != -1) {
+            bytesRead += 1;
+            readOperationCount++;
+        }
+        return byteData;
+    }
+
+    public int read(byte[] b) throws IOException {
+
+        int totalBytesRead = inputStream.read(b);
+        if (totalBytesRead != -1) {
+            bytesRead += totalBytesRead;
+            readOperationCount++;
+        }
+        return totalBytesRead;
+
+    }
+
+    public int read(byte[] b, int off, int len) throws IOException {
+
+        int bytesReadIntoBuffer = inputStream.read(b, off, len);
+
+        if (bytesReadIntoBuffer != -1) {
+            bytesRead += bytesReadIntoBuffer;
+            readOperationCount++;
+        }
+        return bytesReadIntoBuffer;
+
+
+    }
+
+    public byte[] readAllBytes() throws IOException {
+
+        byte[] allData = this.inputStream.readAllBytes();
+
+        if (allData.length > 0) {
+            readOperationCount++;
+            bytesRead += allData.length;
+        }
+        return allData;
+
+    }
+
+    public byte[] readNBytes(int len) throws IOException {
+
+        byte[] allData = this.inputStream.readNBytes(len);
+        if (allData.length > 0) {
+            readOperationCount++;
+            bytesRead += allData.length;
+        }
+        return allData;
+    }
+
+    public void write(int b) throws IOException {
+
+        try {
+            this.outputStream.write(b);
+            writeOperationCount++;
+            bytesWritten++;
+
+        } catch (IOException ioException) {
+            ioException.printStackTrace();
+        }
+
+    }
+
+    public void write(byte[] b) throws IOException {
+        try {
+
+            this.outputStream.write(b);
+            writeOperationCount++;
+            bytesWritten += b.length;
+
+
+        } catch (IOException ioException) {
+            ioException.printStackTrace();
+        }
+    }
+
+    public void write(byte[] b, int off, int len) throws IOException {
+        try {
+            this.outputStream.write(b, off, len);
+            writeOperationCount++;
+            bytesWritten += len;
+
+        } catch (IOException ioException) {
+            ioException.printStackTrace();
+        }
+    }
+
+    public long getBytesRead() {
+        return bytesRead;
+    }
+
+    public long getReadOperationCount() {
+        return readOperationCount;
+    }
+
+    public long getBytesWritten() {
+        return bytesWritten;
+    }
+
+    public long getWriteOperationCount() {
+        return writeOperationCount;
+    }
+
+    @Override
+    public void close() throws IOException {
+        if (this.inputStream != null) {
+            this.inputStream.close();
+        }
+        if (this.outputStream != null) {
+            this.outputStream.close();
+        }
+    }
+
+}
+
+
+
+
diff --git a/exercises/practice/paasio/src/test/java/PaasioTest.java b/exercises/practice/paasio/src/test/java/PaasioTest.java
new file mode 100644
index 000000000..f07a1cecb
--- /dev/null
+++ b/exercises/practice/paasio/src/test/java/PaasioTest.java
@@ -0,0 +1,337 @@
+import org.junit.jupiter.api.*;
+
+import java.io.*;
+import java.nio.charset.StandardCharsets;
+import java.util.Arrays;
+
+import static org.assertj.core.api.Assertions.*;
+
+public class PaasioTest {
+
+    private ByteArrayInputStream dataInputStream;
+    private ByteArrayOutputStream dataOutputStream;
+    private static final String MESSAGECONSTANT = "This is additional Content.";
+
+    @BeforeEach
+    public void setUPTest(TestInfo testInfo) {
+
+        this.dataInputStream = new ByteArrayInputStream("This is data ".getBytes());
+        this.dataOutputStream = new ByteArrayOutputStream();
+    }
+
+    @Test
+    void checkReadOperationCount() {
+
+        try (Paasio customFileReader = new Paasio(this.dataInputStream, this.dataOutputStream)) {
+            customFileReader.read();
+            customFileReader.read();
+            customFileReader.read();
+            assertThat(customFileReader.getReadOperationCount()).isEqualTo(3);
+        } catch (IOException ioException) {
+            System.out.println("Exception occured");
+        }
+
+    }
+
+    @Test
+    void checkAmountOfDataReadInBytes() {
+
+        try (Paasio fileOperations = new Paasio(this.dataInputStream, this.dataOutputStream)) {
+
+            fileOperations.read();
+            fileOperations.read();
+            fileOperations.read();
+            fileOperations.read();
+
+            assertThat(fileOperations.getBytesRead()).isEqualTo(4);
+
+        } catch (IOException ioException) {
+            ioException.printStackTrace();
+        }
+
+    }
+
+    @Test
+    void checkAmountOfDataReadInBytesForMultipleOperations() {
+
+        try (Paasio fileOperations = new Paasio(this.dataInputStream, this.dataOutputStream)) {
+
+            fileOperations.read();
+            fileOperations.read();
+            fileOperations.read();
+            fileOperations.read();
+
+            byte[] readByteData = new byte[5];
+            fileOperations.read(readByteData);
+            assertThat(fileOperations.getBytesRead()).isEqualTo(9);
+
+        } catch (IOException ioException) {
+            ioException.printStackTrace();
+        }
+
+    }
+
+    @Test
+    void checkByteValueReadFromTheFile() {
+
+        try (Paasio fileOperations = new Paasio(this.dataInputStream, this.dataOutputStream)) {
+
+            byte[] fileData = new byte[100];
+            int bytesRead = fileOperations.read(fileData);
+            String dataInFile = new String(fileData, 0, bytesRead, StandardCharsets.UTF_8);
+            assertThat(dataInFile).isEqualTo("This is data ");
+
+        } catch (IOException ioException) {
+            ioException.printStackTrace();
+        }
+
+    }
+
+    @Test
+    void checkIfNullPointerExceptionIsThrownWhenNullIsPassedInsteadOfByteArray() {
+
+        assertThatThrownBy(() -> {
+            Paasio fileOperations = new Paasio(this.dataInputStream, this.dataOutputStream);
+            fileOperations.read(null);
+        }).isInstanceOf(NullPointerException.class);
+
+    }
+
+    @Test
+    void checkIfDataFollowsTheOffsetWhileWritingInByteArray() {
+
+        try (Paasio fileOperations = new Paasio(this.dataInputStream, this.dataOutputStream)) {
+
+            byte[] initialMessage = "Hello! ".getBytes();
+            byte[] messageArray = Arrays.copyOf(initialMessage, 50);
+
+            int length = messageArray.length - initialMessage.length - 2;
+            //It will read data into the messageArray and will begin writing it from its  initialMessage.length index
+            int bytesRead = fileOperations.read(messageArray, initialMessage.length, length);
+
+            String dataInFile = new String(messageArray, 0, initialMessage.length + bytesRead, StandardCharsets.UTF_8);
+            assertThat(dataInFile).isEqualTo("Hello! This is data ");
+
+        } catch (IOException ioException) {
+            ioException.printStackTrace();
+        }
+    }
+
+
+    @Test
+    void validateBytesOfDataReadWhileReadingItFromOffset() {
+
+        try (Paasio fileOperations = new Paasio(this.dataInputStream, this.dataOutputStream)) {
+
+            byte[] byteData = new byte[50];
+            int bytesRead = fileOperations.read(byteData, 0, 10);
+
+            assertThat(bytesRead).isEqualTo(10);
+
+        } catch (IOException ioException) {
+            ioException.printStackTrace();
+        }
+
+    }
+
+    @Test
+    void validateAllBytesReadingData() {
+
+        try (Paasio fileOperations = new Paasio(this.dataInputStream, this.dataOutputStream)) {
+
+            byte[] bytes = fileOperations.readAllBytes();
+            assertThat(fileOperations.getBytesRead()).isEqualTo(bytes.length);
+
+        } catch (IOException ioException) {
+            ioException.printStackTrace();
+        }
+
+    }
+
+
+    @Test
+    void validateAllBytesReadOperationCount() {
+
+        try (Paasio fileOperations = new Paasio(this.dataInputStream, this.dataOutputStream)) {
+
+            fileOperations.read();
+            fileOperations.read();
+            fileOperations.readAllBytes();
+            assertThat(fileOperations.getReadOperationCount()).isEqualTo(3);
+
+        } catch (IOException ioException) {
+            ioException.printStackTrace();
+        }
+
+    }
+
+
+    @Test
+    void validateReadNBytesReadOperationCount() {
+
+        try (Paasio fileOperations = new Paasio(this.dataInputStream, this.dataOutputStream)) {
+
+            fileOperations.readNBytes(5);
+            fileOperations.readNBytes(5);
+
+            assertThat(fileOperations.getReadOperationCount()).isEqualTo(2);
+            System.out.println("haha ");
+            System.out.println(fileOperations.getReadOperationCount());
+
+        } catch (IOException ioException) {
+            ioException.printStackTrace();
+        }
+    }
+
+    @Test
+    void validateReadNBytesDataReadInBytesAndVerifyReadCount() {
+
+        try (Paasio fileOperations = new Paasio(this.dataInputStream, this.dataOutputStream)) {
+            byte[] helloArray = "Hello! ".getBytes();
+            byte[] dataRead = Arrays.copyOf(helloArray, 100);
+
+            int bytesRead = fileOperations.read(dataRead, helloArray.length, 40);
+            String finalVAlue = new String(dataRead, 0, helloArray.length + bytesRead, StandardCharsets.UTF_8);
+
+            assertThat("Hello! This is data ").isEqualTo(finalVAlue);
+            assertThat(1).isEqualTo(fileOperations.getReadOperationCount());
+
+        } catch (IOException ioException) {
+            ioException.printStackTrace();
+        }
+
+    }
+
+    @Test
+    void verifyNumberOfWriteOperations() {
+
+        try (Paasio fileOperations = new Paasio(this.dataInputStream, this.dataOutputStream)) {
+            fileOperations.write(23);
+            fileOperations.write(24);
+            fileOperations.write(25);
+            fileOperations.write(25);
+
+            assertThat(fileOperations.getWriteOperationCount()).isEqualTo(4);
+
+        } catch (IOException ioException) {
+            ioException.printStackTrace();
+        }
+
+    }
+
+    @Test
+    void verifyContentAfterWritingByteArrayIntoTheOutputStream() {
+        try (Paasio fileOperations = new Paasio(this.dataInputStream, this.dataOutputStream)) {
+
+            byte[] writeFileContent = MESSAGECONSTANT.getBytes();
+            fileOperations.write(writeFileContent);
+            String dataWritten = this.dataOutputStream.toString(StandardCharsets.UTF_8);
+
+            assertThat(dataWritten).isEqualTo(MESSAGECONSTANT);
+
+        } catch (IOException ioException) {
+            ioException.printStackTrace();
+        }
+    }
+
+    @Test
+    void verifyWriteOperationCountAfterWritingByteArrayIntoTheOutputStream() {
+
+        try (Paasio fileOperations = new Paasio(this.dataInputStream, this.dataOutputStream)) {
+
+            byte[] writeFileContent = MESSAGECONSTANT.getBytes();
+            fileOperations.write(writeFileContent);
+            fileOperations.write(writeFileContent);
+            fileOperations.write(43);
+
+            assertThat(3).isEqualTo(fileOperations.getWriteOperationCount());
+
+        } catch (IOException ioException) {
+            ioException.printStackTrace();
+        }
+    }
+
+
+    @Test
+    void verifyBytesOfDataWrittenInTheOutputStream() {
+
+        try (Paasio fileOperations = new Paasio(this.dataInputStream, this.dataOutputStream)) {
+
+            byte[] writeFileContent = MESSAGECONSTANT.getBytes();
+            fileOperations.write(writeFileContent);
+            fileOperations.write(writeFileContent);
+            fileOperations.write('s');
+
+            assertThat(fileOperations.getBytesWritten()).isEqualTo((writeFileContent.length * 2L) + 1);
+
+        } catch (IOException ioException) {
+            ioException.printStackTrace();
+        }
+
+    }
+
+    @Test
+    void verifyBytesWrittenFromOffsetIntoTheOutputStreamAlongWithTheCount() {
+
+        try (Paasio fileOperations = new Paasio(this.dataInputStream, this.dataOutputStream)) {
+
+            String fileContentToBeWritten = "   This is additional Content.";
+            byte[] writeFileContent = fileContentToBeWritten.getBytes();
+
+            fileOperations.write(writeFileContent, 3, writeFileContent.length - 3);
+
+            String fileConvertedToString = this.dataOutputStream.toString(StandardCharsets.UTF_8);
+
+            assertThat(fileConvertedToString).isEqualTo(fileContentToBeWritten.trim());
+            assertThat(fileOperations.getWriteOperationCount()).isEqualTo(1);
+
+        } catch (IOException ioException) {
+            ioException.printStackTrace();
+        }
+
+    }
+
+
+    @Test
+    void verifyReadOperationStats() {
+
+        try (Paasio fileOperations = new Paasio(this.dataInputStream, this.dataOutputStream)) {
+
+            byte[] dataRead = new byte[50];
+
+            fileOperations.read();
+            fileOperations.read();
+            fileOperations.read();
+            fileOperations.read(dataRead, 0, 5);
+
+            assertThat(fileOperations.getReadOperationCount()).isEqualTo(4);
+            assertThat(fileOperations.getBytesRead()).isEqualTo(8);
+
+        } catch (IOException ioException) {
+            ioException.printStackTrace();
+        }
+
+    }
+
+    @Test
+    public void checkBytesOfDataWrittenAlongWithWriteOperationCount() {
+
+        byte[] someData = "Writing Data".getBytes();
+        try (Paasio fileOperations = new Paasio(this.dataInputStream, this.dataOutputStream)) {
+
+            fileOperations.write('3');
+            fileOperations.write('4');
+            fileOperations.write('6');
+            fileOperations.write(someData);
+
+            assertThat(fileOperations.getWriteOperationCount()).isEqualTo(4);
+            assertThat(fileOperations.getBytesWritten()).isEqualTo(15);
+
+        } catch (IOException ioException) {
+            ioException.printStackTrace();
+        }
+
+    }
+
+
+}
diff --git a/exercises/settings.gradle b/exercises/settings.gradle
index 61f9b0991..b77ad8822 100644
--- a/exercises/settings.gradle
+++ b/exercises/settings.gradle
@@ -99,6 +99,7 @@ include 'practice:nth-prime'
 include 'practice:nucleotide-count'
 include 'practice:ocr-numbers'
 // include 'practice:octal' // deprecated
+include 'practice:paasio'
 include 'practice:palindrome-products'
 include 'practice:pangram'
 include 'practice:parallel-letter-frequency'