L33PassbyRefvsPassbyVal.java

public class L33PassbyRefvsPassbyVal{

   public static void main(String[] args){
      //Example 1: Pass by Val
      int i = 1;
      String s = "hello";
      boolean b = true;
      v(i, s, b);
      System.out.println(i);
      //prints 1
      System.out.println(s);
      //prints hello
      System.out.println(b);
      //prints true

      //Example 2: Pass by Ref (Need Circle class)
//       Circle c = new Circle(1);
//       int[] iArr = new int[5];
//       iArr[2] = 10;
//       r( c, iArr );
//       System.out.println(c.getRadius());
//       System.out.println(iArr[2]);

      //Example 3: Reassigning a Reference
//       int[] theArr = new int[5];
//       theArr[1] = 9;
//       theArr[2] = 5;
//       o( theArr );
//       System.out.println(theArr[1]);
//       System.out.println(theArr[2]);


   }

   public static void v(int i, String s, boolean b){
      i = 99;
      s = "hi";
      b = false;
   }

   public static void r(Circle someCircle, int[] anArr){
      someCircle.setRadius(20);
      anArr[2] = 99;
   }

   public static void o(int[] anArr){
     anArr[1] = 99;        //Line 1
     anArr = new int[5];   //Line 2
     anArr[2] = 55;        //Line 3
   }



}