What will happen after compiling this program code?
abstract class MyClass{ //line 1
private int a, b;
public void call(int a, int b){
this.a = a;
this.b = b;
System.out.print(a+b);
}
}
public class Test{
public static void main(String args[]){
MyClass m = new MyClass(); //line 2
m.call(12,25);
}
}
abstract class MyClass{ //line 1
private int a, b;
public void call(int a, int b){
this.a = a;
this.b = b;
System.out.print(a+b);
}
}
public class Test{
public static void main(String args[]){
MyClass m = new MyClass(); //line 2
m.call(12,25);
}
}
A. Successful run and print 37
B. Compilation error due to line 1
C. Compilation error due to line 2
D. Runtime error
E. None of these
Answer: Option C
Solution (By Examveda Team)
Abstract class is not concrete class which means object cannot be created for abstract class, its requires extending it and then create the object of extended class.
A. A contract specifying a set of methods that a class must implement
B. A class that cannot be instantiated
C. A class that contains only static methods
D. A subclass of the Object class
In Java, can a class implement multiple interfaces?
A. Interfaces cannot be implemented by classes
B. Only abstract classes can implement interfaces
C. No, a class can only implement one interface
D. Yes, a class can implement multiple interfaces
What is the purpose of an abstract class in Java?
A. To declare abstract methods
B. To provide a base class with common methods and fields
C. To make a class final
D. None of These
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