1、equals()
2、toString()
package com_package1;public class Person44 {
private int age; public int getAge() {
return age;
} public void setAge(int age) {
this.age = age;
}
Person44(int age)
{
this.age = age; }}
package com_package1;public class Person44Demo {
public static void main(String[]args)
{
Person44 p = new Person44(44);
System.out.println(p);//com_package1.Person44@4f1d0d如果输出的是引用类型的变量那么输出的是字符串
System.out.println(p.toString());//com_package1.Person44@4f1d0d }}
package com_package1;public class Person44 {
private int age; public int getAge() {
return age;
} public void setAge(int age) {
this.age = age;
}
Person44(int age)
{
this.age = age; }
public String toString()
{
return "Person:"+age; }
}
package com_package1;public class Person44Demo {
public static void main(String[]args)
{
Person44 p = new Person44(44);
System.out.println(p);//com_package1.Person44@4f1d0d如果输出的是引用类型的变量那么输出的是字符串
System.out.println(p.toString());//com_package1.Person44@4f1d0d }}