What is the output for the below code?
class A{
public A(){
System.out.println("A");
}
public A(int i){
this();
System.out.println(i);
}
}
class B extends A{
public B(){
System.out.println("B");
}
public B(int i){
this();
System.out.println(i+3);
}
}
public class Test{
public static void main (String[] args){
new B(5);
}
}
class A{
public A(){
System.out.println("A");
}
public A(int i){
this();
System.out.println(i);
}
}
class B extends A{
public B(){
System.out.println("B");
}
public B(int i){
this();
System.out.println(i+3);
}
}
public class Test{
public static void main (String[] args){
new B(5);
}
}A. A B 8
B. A 5 B 8
C. A B 5
D. B 8 A 5
E. None of these
Answer: Option A
Solution(By Examveda Team)
Constructor of class B call their superclass constructor of class A (public A()), which execute first, and that constructors can be overloaded. Then come to constructor of class B (public B (int i)).
This Question Belongs to Java Program >> Constructors And Methods
What is a constructor in Java?
A. A special method to create instances of classes
B. A method used for mathematical calculations
C. A method to perform string manipulations
D. An exception handling mechanism
In Java, which method is automatically called when an object is created?
A. start()
B. main()
C. init()
D. constructor()
What is method overloading in Java?
A. Defining multiple methods with the same name in the same class
B. Calling methods from another class
C. Using methods to load data from a file
D. Running methods in parallel threads
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