Creating object using static keyword in Java

Question

class abc {
    int a = 0;
    static int b;
    static abc h = new abc(); //line 4

    public abc() {
        System.out.println(\"cons\");
    }

    {
        System         


        

Answer 1

Static fields initialization and static blocks are executed in the order they are declared. In your case, the code is equivalent to this after separating declaration and initialization:

class abc{
    int a;
    static int b;
    static abc h;//line 4

    static {
        h = new abc();//line 4 (split)
        System.out.println("stat");
    }

    public abc() {
        a = 0;
        System.out.println("ini");
        System.out.println("cons");
    }
}

public class ques{
    public static void main(String[] args) {
        System.out.println(new abc().a);
    }
}

So when you reach line 4 from your code, the static initialization is actually being executed and not finished yet. Hence your constructor is called before stat can be printed.