/** 
 *equlas()方法重写实例 
 */ 
class User { 
 /** 
 *方法描述：设置name值 
 *输入参数：String name 
 *返回类型：void 
 */ 
 public void setName(String name) { 
 this.name = name; 
 } 
 
/** 
 *方法描述：获取name值 
 *输入参数： 
 *返回类型：String 
 */ 
 public String getName() { 
  return name; 
 } 
 
/** 
 *方法描述：重写equals()方法 
 *输入参数：Object obj 
 *返回类型：boolean 
 */ 
 
public boolean equals(Object obj) { 
 if(this == obj) { 
  return true; 
 } 
 if(null == obj) { 
  return false; 
 } 
 if(getClass() != obj.getClass()) { 
  return false; 
 } 
 
 User user = (User) obj; 
 if(!name.equals(user.name)) { 
 return false; 
 } 
 return true; 
} 
 private String name; 
} 
 
public class EqualsDemo { 
 public static void main(String[] args) { 
 User userA = new User(); 
 userA.setName("王明"); 
  
 User userB = new User(); 
 userB.setName("王明"); 
 
 User userC = new User(); 
 userC.setName("王亮"); 
 
 System.out.println("userA equals userB:" + userA.equals(userB)); 
 System.out.println("userA equals userC:" + userA.equals(userC)); 
 } 
}