[Java] 静态块，构造块，构造函数，普通函数的执行顺序

写个例子求证网传的这三者的关系
1、每调用一次构造方法，则执行一次构造块
2、静态块只在类加载的时候加载一次
3、有多个静态块或构造块时，按声明顺序加载
4、加这点， static块优先于构造块，构造函数，是最先被执行的！
5、这三个模块函数的执行都优先于主函数（例子中的test()就是主函数）。

public class StaticBlock {
    public void test(){
        System.out.println("Running normal function!");
    }

    {
        System.out.println("Running constructor block!");
    }

    public StaticBlock(){
        System.out.println("Running constructor function!");
    }

    static {
        System.out.println("Running static block!");
    }

    public static void main(String[] args) {
        StaticBlock staticBlock = new StaticBlock();
        staticBlock.test();

        StaticBlock staticBlock1 = new StaticBlock();
        staticBlock1.test();
    }
}

执行结果：
Running static block! //静态块只在类加载的时候加载一次
Running constructor block! //每调用一次构造方法，则执行一次构造块
Running constructor function!
Running normal function!

Running constructor block!
Running constructor function! //每调用一次构造方法，则执行一次构造块
Running normal function!

增加一个构造块，和一个静态块：

public class StaticBlock {
    public void test(){
        System.out.println("Running normal function!");
    }

    {
        System.out.println("Running constructor block2!");
    }

    {
        System.out.println("Running constructor block1!");
    }

    public StaticBlock(){
        System.out.println("Running constructor function!");
    }

    static {
        System.out.println("Running static block2!");
    }

    static {
        System.out.println("Running static block1!");
    }

    public static void main(String[] args) {
        StaticBlock staticBlock = new StaticBlock();
        staticBlock.test();

        StaticBlock staticBlock1 = new StaticBlock();
        staticBlock1.test();
    }
}

结果：
Running static block2! //有多个静态块或构造块时，按声明顺序加载
Running static block1!
Running constructor block2! //有多个静态块或构造块时，按声明顺序加载
Running constructor block1!
Running constructor function!
Running normal function!

Running constructor block2!
Running constructor block1!
Running constructor function!
Running normal function!