Help needed

public class Test extends A{
Test(){
System.out.println("Sub");
}
public static void main(String args[]) {
Test t = new Test();
}
}
class A{
A(int i){
System.out.println("Super");
}
}

plz explain the output

Please use tags.
Please use a meaningful topic title.
What output does it give? Explain what you do not understand about it.

It wont give any output. Code wont get compiled. The Base class A has a constructor which takes int as an argument. Any class extending it has to have a constructor which will explicitly call base class constructor

else compiler will put default no arg super call in the derived class constructor which will cause the compilation to fail.

Constructor