Java 中被static 修饰的属性，方法和代码块在什么时候加载

来源：互联网发布：little darling mac 编辑：程序博客网时间：2024/05/16 11:12

intellij社区版+jdk.7

package com.static_life;import com.SVS2;/** * Created by Administrator on 2016/12/21. */public class StaticVariableStart {    public static int  age = 124;    public String name;    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }    public static void main(String [] args){        SVS2 svs2;//breakpoint        svs2= new SVS2();//        String s = SVS2.string;        StaticVariableStart staticVariableStart = new StaticVariableStart();        System.out.print(SVS2.class.getGenericSuperclass());    }}

在主方法中设置多个断点

package com;/** * Created by Administrator on 2016/12/21. */public class SVS2 {    public static String string = "";    {        System.out.println("这是代码块");    }    static {        System.out.println("这是SVS2 的静态代码块");    }}

breakpoint1：SVS2.string = Class not load：com.SVS2；静态池中已经存在StaticVariableLife.age = 124.（No executable code）

breakpoint2：SVS2.string = ""；SVS2加载，取到值，并且自动执行了SVS2中的代码块，静态代码块优先。

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