Java_基础_参数传递

Java中方法的参数传递均为按值传递，即使传递的是对象或者数组，传递过去的也是引用的拷贝。

package com.algorithms;

/**
 * Created by 田爽 on 2015/9/27 9:16.
 */
public class Person {
private int age;

public Person(int age) {
this.age = age;
    }

@Override
public String toString() {
return "Person{" +
"age=" + age +
'}';
    }

}

package com.algorithms;

/**
 * Created by 田爽 on 2015/9/15 19:49.
 */
public class Test {
public static void main(String[] args) {
        Person person = new Person(10);
        transmit(person);
        System.out.println(person);
    }

private static void transmit(Person person) {
        person = new Person(20);
    }
}