对象初始化优先级

初始化优先级：静态代码块>>main方法>>构造代码块>>构造函数

package com.itinfo;

/**
 * 代码块的优先级
 * http://www.cnblogs.com/goodcheap
 *
 * @author: Wáng Chéng Dá
 * @create: 2017-02-26 19:12
 */
public class CodeBlock {

    static {
        System.out.println("go to------>>>>>(CodeBlock--static{})");
        System.out.println("I am CodeBlock static code block!
");
    }

    {
        System.out.println("go to------>>>>>(CodeBlock--{})");
        System.out.println("I am CodeBlock code block!
");
    }

    public CodeBlock() {
        System.out.println("go to------>>>>>(CodeBlock--CodeBlock(){})");
        System.out.println("I am CodeBlock Constructor!
");
    }

}
class TestCodeBlock extends CodeBlock {

    static {
        System.out.println("go to------>>>>>(TestCodeBlock--static{})");
        System.out.println("I am TestCodeBlock static code block!
");
    }

    {
        System.out.println("go to------>>>>>(TestCodeBlock--{})");
        System.out.println("I am TestCodeBlock code block!
");
    }

    public TestCodeBlock() {
        System.out.println("go to------>>>>>(TestCodeBlock--public TestCodeBlock(){})");
        System.out.println("I am TestCodeBlock Constructor!
");
    }

    public static void main(String[] args) {
        System.out.println("go to------>>>>>(main)");
        System.out.println("I am main method!
");
        CodeBlock block = new TestCodeBlock();
    }
}

控制台输出：

go to------>>>>>(CodeBlock--static{}) I am CodeBlock static code block! go to------>>>>>(TestCodeBlock--static{}) I am TestCodeBlock static code block! go to------>>>>>(main) I am main method! go to------>>>>>(CodeBlock--{}) I am CodeBlock code block! go to------>>>>>(CodeBlock--CodeBlock(){}) I am CodeBlock Constructor! go to------>>>>>(TestCodeBlock--{}) I am TestCodeBlock code block! go to------>>>>>(TestCodeBlock--public TestCodeBlock(){}) I am TestCodeBlock Constructor!

多态状态对象初始化优先级总结：父类静态代码块>>子类静态代码块>>main方法>>父类构造代码块>>父类构造函数>>子类构造代码块>>子类构造函数