equalsmethod.java

所学课程的编码。java的基础例子。可以练习java通过这些例子。

/* David Java File
 * Created on 2006-9-21
 *
 * TODO To change the template for this generated file go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
package chap03;

class Value {
	int i;
	int j;
	public boolean equals(Object obj) {
		Value v = (Value) obj;
		return v.j == j;
	}
}
public class EqualsMethod {
	public static void main(String[] args) {
		Value v1 = new Value();
		Value v2 = new Value();
		v1.i = 100;
		v2.i = 200;
		v1=v2;
		v2.i = 999;
		System.out.println(v1.i);
		System.out.println(v2.i);
	}
}