toString方法的应用

package HspLearningPoly.poly01.Obj;

public class ToString01 {
public static void main(String[] args) {
/*
getClass().getName() 类的全类名（包名+类名）
Integer.toHexString(hashCode())将对象的hashcode值转成16进制
public String toString() {
return getClass().getName() + "@" + Integer.toHexString(hashCode());
}
*/
Monster monster = new Monster("猴子", "砍柴", 1233.2);
System.out.println(monster.toString()+"monster.hashCode()="+monster.hashCode());

    System.out.println("当直接输出一个对象时，toString方法会被默认的调用");
    System.out.println(monster);
}

}
class Monster{
private String name;
private String job;
private double salary;

    public Monster(String name, String job, double salary) {
        this.name = name;
        this.job = job;
        this.salary = salary;
    }
}

输出结果为：

HspLearningPoly.poly01.Obj.Monster@1b6d3586monster.hashCode()=460141958
当直接输出一个对象时，toString方法会被默认的调用
HspLearningPoly.poly01.Obj.Monster@1b6d3586