datacompare.java

有一个接口,用抽象类实现它的部分功能,再用实现类继承抽象类,实现其它没实现的接口方法

package cn.edu.csu.oo.overrideoper;

public class DataCompare {

  /**
   * @param args
   */
  public static void main(String[] args) {
    int i = 10;
    int j = 10;
    
    System.out.println(i == j);

    Integer x = new Integer(10);
    Integer y = new Integer(10);
    System.out.println(x == y);
    System.out.println(x.equals(y));
    
    Employee e1 = new Employee("jack",110,"Male");
    Employee e2 = new Employee("jack",110,"Male");
    System.out.println(e1 == e2);
    System.out.println(e1.equals(e2));   
    
    Employee e3 = new Employee("jack","Male");
    Employee e4 = new Employee("jack","Male");
    System.out.println(e3 == e4);
    System.out.println(e3.equals(e4));   
        
  }

}