What problem with this code

Question

Dear professional Javaer :)
I have a code with much inbeliveble:
import java.util.List;
import java.util.ArrayList;
class Test {
private List<String> listStr = this.getListOfString();
public Test() {
System.out.println("Out: " + this.listStr);
public List<String> getListOfString() {
System.out.println("test");
List<String> tmpList = new ArrayList<String>();
tmpList.add("Temporary List.");
return tmpList;
public static void main(String[] args) {
System.out.println("Begin main method...");
Test t = new Test();
And result is :
{color:#ff0000}Begin main method...
test
Out: [Temporary List.]{color}
My question is:
Why contructor is created after call this.getListOfString();
Why listStr = this.getListOfString();
is legal because "this" is present by a object.
Thanks.

Answer 1

The following code should give a pretty complete picture of class initialization and construction
class Super{
   static { System.out.println("Superclass static initializer"); }
   { System.out.println("Superclass instance initializer"); }
   int x = initX();
   public Super(){
      System.out.println("Superclass constructor");
   private int initX() { System.out.println("Superclass.x initialization"); return 0; }
class Child extends Super{
   static { System.out.println("Child class static initializer"); }
   { System.out.println("Child class instance initializer"); }
   int y = initY();
   public Super(){
      System.out.println("Child class constructor");
   private int initY() { System.out.println("Child.y initialization"); return 0; }
class Main{
   public static void main(String[] args){
      System.out.println("Creating instance of Child");
      new Child();
      System.out.println("\nCreating instance of Super");
      new Super();
}