diff --git a/dl4j-examples/build.gradle b/dl4j-examples/build.gradle
deleted file mode 100644
index 723cd8d972..0000000000
--- a/dl4j-examples/build.gradle
+++ /dev/null
@@ -1,86 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2015-2019 Skymind, Inc.
- *
- * This program and the accompanying materials are made available under the
- * terms of the Apache License, Version 2.0 which is available 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.
- *
- * SPDX-License-Identifier: Apache-2.0
- ******************************************************************************/
-
-apply plugin: 'kotlin'
-apply plugin: 'application'
-apply plugin: 'maven'
-
-group = 'org.deeplearning4j.examples'
-
-sourceCompatibility = 1.8
-
-mainClassName = 'org.deeplearning4j.examples.feedforward.mnist.MLPMnistSingleLayerExample'
-
-buildscript {
- ext {
- dl4j_version = "1.0.0-beta6"
- kotlin_version = "1.3.30"
- }
- repositories {
- maven { url "https://oss.sonatype.org/content/repositories/snapshots" }
- mavenCentral()
- }
- dependencies {
- classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
- }
-}
-
-repositories {
- maven { url "https://oss.sonatype.org/content/repositories/snapshots" }
- mavenCentral()
-}
-
-dependencies {
- implementation "org.jetbrains.kotlin:kotlin-stdlib:${kotlin_version}"
- implementation "org.deeplearning4j:deeplearning4j-core:${dl4j_version}"
- implementation "org.nd4j:nd4j-native-platform:${dl4j_version}"
- implementation "org.slf4j:slf4j-simple:1.7.25"
- implementation "org.slf4j:slf4j-api:1.7.25"
-}
-
-compileKotlin {
- kotlinOptions.jvmTarget = '1.8'
-}
-
-compileTestKotlin {
- kotlinOptions.jvmTarget = '1.8'
-}
-
-sourceSets {
- main {
- /*
- Kotlin examples do not use java sources, so let's exclude them all
- */
- java {
- srcDir "src/main/java"
- exclude "**"
- }
- }
-}
-
-task MLPMnistSingleLayerExample(type: JavaExec) {
- classpath = sourceSets.main.runtimeClasspath
- main = "org.deeplearning4j.examples.feedforward.mnist.MLPMnistSingleLayerExample"
-}
-
-task MLPMnistTwoLayerExample(type: JavaExec) {
- classpath = sourceSets.main.runtimeClasspath
- main = "org.deeplearning4j.examples.feedforward.mnist.MLPMnistTwoLayerExample"
-}
-
-/*
-More Java examples to be converted to Kotlin
- */
diff --git a/dl4j-examples/build.gradle.kts b/dl4j-examples/build.gradle.kts
new file mode 100644
index 0000000000..6e806f67cb
--- /dev/null
+++ b/dl4j-examples/build.gradle.kts
@@ -0,0 +1,83 @@
+/*******************************************************************************
+ * Copyright (c) 2015-2019 Skymind, Inc.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Apache License, Version 2.0 which is available 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ ******************************************************************************/
+
+import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
+
+plugins {
+ `java-library`
+ id("application")
+ id("kotlin")
+}
+
+allprojects {
+ val kotlinVersion: String by extra("1.3.72")
+ val dl4jVersion: String by extra("1.0.0-beta6")
+ val slf4jVersion: String by extra("1.7.30")
+}
+
+repositories {
+ maven("https://oss.sonatype.org/content/repositories/snapshots")
+ jcenter()
+}
+
+group = "org.deeplearning4j.examples"
+application {
+ mainClassName = "org.deeplearning4j.examples.feedforward.mnist.MLPMnistSingleLayerExample"
+}
+
+tasks.withType<KotlinCompile>().all {
+ kotlinOptions {
+ jvmTarget = JavaVersion.VERSION_1_8.toString()
+ }
+}
+
+sourceSets {
+ main {
+ java{
+ srcDir("src/main/java")
+ /**
+ * Kotlin examples do not use java sources, so let's exclude them all.
+ */
+ exclude("**")
+ }
+ }
+}
+
+internal val singleLayerExample = tasks.register<JavaExec>("MLPMnistSingleLayerExample") {
+ classpath = sourceSets.main.get().runtimeClasspath
+ main = "org.deeplearning4j.examples.feedforward.mnist.MLPMnistSingleLayerExample"
+}
+
+internal val twoLayerExample = tasks.register<JavaExec>("MLPMnistTwoLayerExample") {
+ classpath = sourceSets.main.get().runtimeClasspath
+ main = "org.deeplearning4j.examples.feedforward.mnist.MLPMnistTwoLayerExample"
+}
+
+dependencies {
+ val kotlinVersion = project.extra["kotlinVersion"].toString()
+ val dl4jVersion = project.extra["dl4jVersion"].toString()
+ val slf4jVersion = project.extra["slf4jVersion"].toString()
+
+ implementation ("org.jetbrains.kotlin:kotlin-stdlib:$kotlinVersion")
+ implementation ("org.deeplearning4j:deeplearning4j-core:$dl4jVersion")
+ implementation ("org.nd4j:nd4j-native-platform:$dl4jVersion")
+ implementation ("org.slf4j:slf4j-simple:$slf4jVersion")
+ implementation ("org.slf4j:slf4j-api:$slf4jVersion")
+}
+
+/**
+ * TODO More Java examples to be converted to Kotlin.
+ */
diff --git a/dl4j-examples/gradle/wrapper/gradle-wrapper.properties b/dl4j-examples/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000000..6623300beb
--- /dev/null
+++ b/dl4j-examples/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.3-all.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
diff --git a/dl4j-examples/gradlew b/dl4j-examples/gradlew
new file mode 100755
index 0000000000..2fe81a7d95
--- /dev/null
+++ b/dl4j-examples/gradlew
@@ -0,0 +1,183 @@
+#!/usr/bin/env sh
+
+#
+# Copyright 2015 the original author or 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 UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+ ls=`ls -ld "$PRG"`
+ link=`expr "$ls" : '.*-> \(.*\)$'`
+ if expr "$link" : '/.*' > /dev/null; then
+ PRG="$link"
+ else
+ PRG=`dirname "$PRG"`"/$link"
+ fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+ echo "$*"
+}
+
+die () {
+ echo
+ echo "$*"
+ echo
+ exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+ CYGWIN* )
+ cygwin=true
+ ;;
+ Darwin* )
+ darwin=true
+ ;;
+ MINGW* )
+ msys=true
+ ;;
+ NONSTOP* )
+ nonstop=true
+ ;;
+esac
+
+CLASSPATH=$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: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+ fi
+else
+ JAVACMD="java"
+ which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+ MAX_FD_LIMIT=`ulimit -H -n`
+ if [ $? -eq 0 ] ; then
+ if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+ MAX_FD="$MAX_FD_LIMIT"
+ fi
+ ulimit -n $MAX_FD
+ if [ $? -ne 0 ] ; then
+ warn "Could not set maximum file descriptor limit: $MAX_FD"
+ fi
+ else
+ warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+ fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+ GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
+ APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+ CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+ JAVACMD=`cygpath --unix "$JAVACMD"`
+
+ # We build the pattern for arguments to be converted via cygpath
+ ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+ SEP=""
+ for dir in $ROOTDIRSRAW ; do
+ ROOTDIRS="$ROOTDIRS$SEP$dir"
+ SEP="|"
+ done
+ OURCYGPATTERN="(^($ROOTDIRS))"
+ # Add a user-defined pattern to the cygpath arguments
+ if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+ OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+ fi
+ # Now convert the arguments - kludge to limit ourselves to /bin/sh
+ i=0
+ for arg in "$@" ; do
+ CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+ CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option
+
+ if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition
+ eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+ else
+ eval `echo args$i`="\"$arg\""
+ fi
+ i=`expr $i + 1`
+ done
+ case $i in
+ 0) set -- ;;
+ 1) set -- "$args0" ;;
+ 2) set -- "$args0" "$args1" ;;
+ 3) set -- "$args0" "$args1" "$args2" ;;
+ 4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+ 5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+ 6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+ 7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+ 8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+ 9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+ esac
+fi
+
+# Escape application args
+save () {
+ for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+ echo " "
+}
+APP_ARGS=`save "$@"`
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+exec "$JAVACMD" "$@"
diff --git a/dl4j-examples/gradlew.bat b/dl4j-examples/gradlew.bat
new file mode 100644
index 0000000000..62bd9b9cce
--- /dev/null
+++ b/dl4j-examples/gradlew.bat
@@ -0,0 +1,103 @@
+@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=.
+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%" == "0" goto init
+
+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 init
+
+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
+
+:init
+@rem Get command-line arguments, handling Windows variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+
+: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 %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="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!
+if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/dl4j-examples/settings.gradle.kts b/dl4j-examples/settings.gradle.kts
new file mode 100644
index 0000000000..2277ed8c2d
--- /dev/null
+++ b/dl4j-examples/settings.gradle.kts
@@ -0,0 +1,30 @@
+/*******************************************************************************
+ * Copyright (c) 2015-2019 Skymind, Inc.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Apache License, Version 2.0 which is available 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ ******************************************************************************/
+
+rootProject.name = "dl4j-examples"
+
+pluginManagement {
+ repositories {
+ gradlePluginPortal()
+ }
+ resolutionStrategy {
+ eachPlugin {
+ if (requested.id.id === "kotlin") {
+ useModule("org.jetbrains.kotlin:kotlin-gradle-plugin:1.3.72")
+ }
+ }
+ }
+}
diff --git a/dl4j-examples/src/main/kotlin/org/deeplearning4j/examples/feedforward/mnist/MLPMnistSingleLayerExample.kt b/dl4j-examples/src/main/kotlin/org/deeplearning4j/examples/feedforward/mnist/MLPMnistSingleLayerExample.kt
index 454c562488..11e3064ee0 100644
--- a/dl4j-examples/src/main/kotlin/org/deeplearning4j/examples/feedforward/mnist/MLPMnistSingleLayerExample.kt
+++ b/dl4j-examples/src/main/kotlin/org/deeplearning4j/examples/feedforward/mnist/MLPMnistSingleLayerExample.kt
@@ -16,25 +16,16 @@
package org.deeplearning4j.examples.feedforward.mnist
-import org.nd4j.linalg.activations.Activation
-import org.nd4j.linalg.dataset.api.iterator.DataSetIterator
-import org.nd4j.linalg.learning.config.Nadam
import org.deeplearning4j.datasets.iterator.impl.MnistDataSetIterator
-import org.deeplearning4j.eval.Evaluation
-import org.deeplearning4j.nn.api.OptimizationAlgorithm
-import org.deeplearning4j.nn.conf.MultiLayerConfiguration
import org.deeplearning4j.nn.conf.NeuralNetConfiguration
-import org.deeplearning4j.nn.conf.Updater
import org.deeplearning4j.nn.conf.layers.DenseLayer
import org.deeplearning4j.nn.conf.layers.OutputLayer
import org.deeplearning4j.nn.multilayer.MultiLayerNetwork
import org.deeplearning4j.nn.weights.WeightInit
import org.deeplearning4j.optimize.listeners.ScoreIterationListener
-import org.nd4j.linalg.api.ndarray.INDArray
-import org.nd4j.linalg.dataset.DataSet
-import org.nd4j.linalg.learning.config.Nesterovs
+import org.nd4j.linalg.activations.Activation
+import org.nd4j.linalg.learning.config.Nadam
import org.nd4j.linalg.lossfunctions.LossFunctions.LossFunction
-import org.slf4j.Logger
import org.slf4j.LoggerFactory
/**A Simple Multi Layered Perceptron (MLP) applied to digit classification for