What will be the output of the following Java code?
class A
{
public int i;
private int j;
}
class B extends A
{
void display()
{
super.j = super.i + 1;
System.out.println(super.i + ” ” + super.j);
}
}
class inheritance
{
public static void main(String args[])
{
B obj = new B();
obj.i=1;
obj.j=2;
obj.display();
}
}
a) 2 2
b) 3 3
c) Runtime Error
d) Compilation Error
Answer: d
Explanation: Class contains a private member variable j, this cannot be inherited by subclass B and does not have access to it.
output:
Exception in thread “main” java.lang.Error: Unresolved compilation problem:
The field A.j is not visible
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