【Java基础】Java中的代码块

/**
 * Created by lili on 15/10/17.
 */

class CodeArea{
    //静态代码块
    static {
        int y = 100;
        System.out.println(y);
    }

    //构造代码块
    {
        int x = 10;
        System.out.println(x);
    }

    public CodeArea() {
        System.out.println("------construct function 1-------");
    }

    //构造代码块,不一定要出现在构造方法前面,可以在同一层级任何位置,但是调用的时候在构造方法之前.
    {
        int x = 20;
        System.out.println(x);
    }

    public CodeArea(int m) {
        System.out.println("------construct function 2-------");
    }

    {
        int x = 30;
        System.out.println(x);
    }

    //静态构造方法不论出现多少次,位置如果,都是在构造代码块和构造方法之前调用.
    static {
        int y = 200;
        System.out.println(y);
    }

    {
        int x = 40;
        System.out.println(x);
    }
}
public class CodeAreaTest {
    public static void main(String args[]) {
        {
            int x = 1;
            System.out.println(x);
        }
        System.out.println("--------split 1----------");

        CodeArea codeArea0 = new CodeArea();

        CodeArea codeArea1 = new CodeArea(1);


    }
}

1
--------split 1----------
100
200
10
20
30
40
------construct function 1-------
10
20
30
40
------construct function 2-------

Process finished with exit code 0