A review of the execution order of static blocks, main methods, construction blocks, and construction methods in Java

write this article to review the Java static block, Main method, building blocks, construction methods of the order of execution, directly run the following code can be at a glance, no more said.

/** * Run the Parent class Main method The order of execution of each block scope: * Static block (and only once)-> Main method-> construction method of building block->/public class Parent {privat
    e int age = 0;
    Private String name = NULL;

    private static String company = NULL;
        static {System.out.println ("Parent static Block runing");
    Company = "Parent-ahik";
        {System.out.println ("Parent constructor block runing");
    THIS.name = "parent";
        Public parent () {System.out.println ("Parent construct method parent () runing");
    This.age = 28;
        Public parent (int age) {System.out.println ("Parent construct method parent (int age) runing");
    This.age = age;
                @Override public String toString () {return ' parent{' + ' age= ' + Age +
    ", Name= '" + name + ' \ ' + ", company= '" + Company + "'" + '} '; public static void Main (String ... args) {System.out.println ("Parent main")Runing ");
        Parent P1 = new parent ();
        System.out.println (p1);
        Parent P2 = new parent (33);

        System.out.println (p2);
            {int i = 100;
        System.out.println (i);
        int i = 99;
    System.out.println (i); }}///////////////////////////////////////////////////////////////** * Run Subclass Main Method The order of execution of individual block scopes: * Parent class static block (and only execute once -> * Subclass static block and execute only once)-> * Subclass Main Method-> * Parent class building Block-> * Parent class construction Method-> * Subclass Construction Block-> * Subclass Construction Method/Public
    Class Child extends Parent {private int age = 0;
    Private String name = NULL;

    private static String company = NULL;
        static {System.out.println ("Child static Block runing");
    Company = "Child-ahik";
        {this.name = "child";
    SYSTEM.OUT.PRINTLN ("Child construct block start runing");
        Public Child () {super (66);
        This.age = 99; SYSTEM.OUT.PRINTLN ("Child construct Method child () runing");
        (int age) {Super (77);
        This.age = age;
    SYSTEM.OUT.PRINTLN ("Child construct (int age) runing");
        public static void Main (String ... args) {System.out.println ("Child main runing");
        Child C1 = new Child ();
        SYSTEM.OUT.PRINTLN (C1);
        Child C2 = new Child (100);
    System.out.println (C2);




 }

}