JavaSE 参数传递机制 值传递和引用传递

package array;

public class FcuntionDemo3 {
    public static void main(String[] args) {
        int a = 10;
        change(a);
        System.out.println(a + " ---> line 7");
    }

    public static void change(int a) {
        System.out.println(a + " ---> line 11");
        a = 20;
        System.out.println(a + " ---> line 13");
    }
}

package array;

public class FunctionDemo4 {
    public static void main(String[] args) {
        int[] arrs = {10, 20, 30};
        change(arrs);
        System.out.println(arrs[1] + " ----> line 7");
    }

    public static void change(int[] arrs) {
        System.out.println(arrs[1] + " ----> line 11");
        arrs[1] = 222;
        System.out.println(arrs[1] + " ----> line 13");
    }
}

标签：参数传递,line,System,传递,arrs,println,JavaSE,public,out
来源： https://blog.csdn.net/dyw3390199/article/details/121125684