new一个类的执行顺序

1.先父类,后子类
2.先静态，后非静态
3.先属性，后构造方法
父类静态变量，父类静态代码块
子类静态变量，子类静态代码块
父类非静态变量，父类非静态代码块，父类构造函数
子类非静态变量，子类非静态代码块，子类构造函数

package com.acofkings;


public class Test {

	public static void main(String[] args) {
			new apple();
	}
}
class tree {
	private static int treenum = getnum();
	private int treenum2 = getnum4();
	private int getnum4() {
		System.out.println("treenum2 init...");
		return 4;
	}
	private static int getnum()
	{
		System.out.println("treenum static init...");
		return 1;
	}
	static 
	{
		System.out.println("tree static ");
	}
	{
		System.out.println("tree");
	}
	public tree() {
		System.out.println("tree  init...");
	}
}
class apple extends tree{
	private static int applenum = getnum2(); 
	private int applenum2 =getnum3();
	private static int getnum2() {
		System.out.println("applenum static init...");
		return 2;
	}
	private int getnum3() {
		System.out.println("applenum2 init...");
		return 2;
	}
	static 
	{
		System.out.println("apple static ");
	}
	{
		System.out.println("apple");
	}
	public apple() {
		System.out.println("apple init...");
	}
}

结果为

treenum static init...
tree static 
applenum static init...
apple static 
treenum2 init...
tree
tree  init...
applenum2 init...
apple
apple init...