First Java Program

Here is a simple Java program which will print This is a simple Java program. on the screen.

/* Java Program Example - Java Simple Program */

public class JavaProgram
{
    public static void main(String args[])
    {
        /* prints This is a simple Java program. */
        
        System.out.println("This is a simple Java program");
        
    }
}

When the above Java program is compile and executed, it will produce the following output:

One More Simple Java Program Example

Following is also a simple Java program example :

/* Java Program Example - Java Simple Program */

public class JavaProgram
{
    public static void main(String args[])
    {
        
        int num;       // this declares a variable called num
        num = 10;      // this assigns the value 10 to the num
        
        System.out.println("This is num: " +num);
        
        num = num * 2;
        
        System.out.println("The value of num * 2 is " +num);
        
        
    }
}

When you run the above Java program, you will see the following output: