Assignment 0

Install Java

Install the Java Development Kit. (JDK) Download the installation file from here and run it.

Make sure that your installation is working

Open up a terminal window, and issue the following commands:

java -version

javac -version

You should see output similar to:

java version "1.7.0_51"
Java(TM) SE Runtime Environment (build 1.7.0_51-b13)
Java HotSpot(TM) Server VM (build 24.51-b03, mixed mode)

and

javac 1.7.0_51

Write, Compile and Run a simple program

1. Create a file named HelloWorld.java
2. Enter the following content:

public class HelloWorld {
  public static void main(String[] args) {
    for (int i = 0; i < 5; i++) {
       System.out.println("Hi");
    }
  }
}

3. Compile the program using: javac HelloWorld.java
4. Verify that a corresponding HelloWorld.class file is created.
5. Run the compiled program: java HelloWorld

You should see the output

Hi
Hi
Hi
Hi
Hi

Make sure you know about the Coding Style

Read and follow the instructions in the CodingStyle page.