An Example of Pass by Constant Value - Java Object Oriented Design

Java examples for Object Oriented Design:Method Parameter

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Description

An Example of Pass by Constant Value

Demo Code

public class Main {
  // x uses pass by constant value and y uses pass by value
  public static void test(final int x, int y) {
    System.out.println("#2: x = " + x + ", y = " + y);  
    y = 3; // Ok to change y
    System.out.println("#3: x = " + x + ", y = " + y);
  }/* w w w.  j a va 2  s . c  om*/
  public static void main(String[] args) {
    int a = 1;
    int b = 3;  
    System.out.println("#1: a = " + a + ", b = " + b);    
    Main.test(a, b);    
    System.out.println("#4: a = " + a + ", b = " + b);
  }
}

Result


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