Object-hashCode

/**
*Object的类是Student1隐藏继承
*/
public class Student1{ //extends Object{

private String name;
private int age;
//测式有没有父类
public Student1(){
    super();
}
//构造器
public void Student1(String name,int age){
    this.name = name ;
    this.age = age ;

}
public void setName(String name){
    this.name = name ;
}

public void setAge(int age){
    this.age = age ;
}

public String getName(){
    return name;
}
public int getAge(){
    return age ;
}

}
class StudentDemo1{

public static void main(String []args){

    Student1 s1 = new Student1();
    s1.setName("kim") ;
    s1.setAge(20) ;
    System.out.println("获取当前对象类名"+s1.getClass().getName());
    System.out.println("获得当前对象的十进制哈希值："+s1.hashCode());
    System.out.println("获得当前对象的十六进制哈希值："+Integer.toHexString(s1.hashCode()));
    System.out.println(s1);//打印对象的时候，底层输出的其实是调用toString方法。
    System.out.println(s1.toString());
}

}