alias2.java

中文JAVA编程思想第二版,一本很好的JAVA入门书籍!

//: appendixa:Alias2.java
// From 'Thinking in Java, 2nd ed.' by Bruce Eckel
// www.BruceEckel.com. See copyright notice in CopyRight.txt.
// Method calls implicitly alias their
// arguments.

public class Alias2 {
  int i;
  Alias2(int ii) { i = ii; }
  static void f(Alias2 reference) {
    reference.i++;
  }
  public static void main(String[] args) {
    Alias2 x = new Alias2(7);
    System.out.println("x: " + x.i);
    System.out.println("Calling f(x)");
    f(x);
    System.out.println("x: " + x.i);
  }
} ///:~