VariableDemo.java.html

  1  /**
  2     This example demonstrates variables and assignments.
  3  */
  4  
  5  public class VariableDemo
  6  {
  7     public static void main(String[] args)
  8     {
  9        int width = 10; // Declares width and initializes it with 10
 10        System.out.print("width: ");
 11        System.out.println(width);
 12  
 13        width = 20; // Changes width to 20
 14        System.out.print("width: ");
 15        System.out.println(width);
 16  
 17        int height = 20;
 18        width = height + 10; // The right hand side can be an expression
 19        System.out.print("width: ");
 20        System.out.println(width);
 21  
 22        width = width + 10; // The same variable can occur on both sides
 23        System.out.print("width: ");
 24        System.out.println(width);      
 25     }
 26  }