java基础值传递和址传递

java基础值传递和址传递

基本数据类型是值传递

引用数据类型是址传递也叫引用传递

package part10;

public class TestSystem {
    public static void changeNum(int num){
        num=34;
    }

    public static void changePerson(Person person){
        person.setAge(10);
        person.setName("俊燕");

    }

    public static void main(String[] args) {
        int num=13;
        changeNum(num);//值传递
        System.out.println(num);

        Person person=new Person();
        person.setAge(26);
        person.setName("俊强");
        changePerson(person);//引用传递
        System.out.println(person.toString());
    }
}