java stack overflow due to recursive constructor calling

Question

I am new to java programmming. Today this example is tought by my teacher in non static method. Any body tell me detailed answer from the point of jvm architecture

class Example {
    int x = 10;
    int y = 20;
    Example e1 = new Example();

    public static void main(String[] args){
        System.out.println("main method start");
        Example e2 = new Example();
        System.out.println("main method end");  
    }
}

Answer 1

class Example {

    int x = 10;
    int y = 20;

    Example e1 = new Example(); // this is the reason

What is happening is when you call new Example in your main() method, Example e1=new Example(); is being executed.

In Example e1=new Example(); you are again creating a new object of Example() which will again call new Example() (recursive calls to new Example() leads to StackOverflowError ).