Look at the following code. Which line will cause a compiler error? Line 1 publi

Question

Look at the following code. Which line will cause a compiler error? Line 1 public class ClassA Line 2 {Line 3 public ClassA () {} Line 4 public int method1 (int a) {} Line 5 public final int method2(double b) {} Line 6} Line 7 public ClassB extends ClassA Line 8 {Line 9 public ClassB () {} Line 10 public int method 1 (int b) {} Line 11 public int method2 (double c) {} Line 12} What is wrong with the following code? public class ClassB extends ClassA {public Class B () {int init = 10; super(40);}}

Explanation / Answer

23.public class ClassA{
public ClassA(){}
public final int method1(int a){}
public double method2(int b){}

}
class ClassB extends ClassA{
public ClassB(){}
  
public int method1(int b){}// this line will throw compilation error as final methods can not be overriden //in child class,. this method in parent class is final, so cant be overriden
public double method2(double c){}
  
  
}

24.

class ClassB extends ClassA{
public ClassB(){}

int init=10;

super(40);// this line will throw compilation error as parent class A doesnt have parametrized constructor in //it, so, it will not be able to make call to parent class constructor.
}

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