Which of these is not a correct statement?
Select an option to see the answer and solution.
Java Programming · all questionsInheritence
Inheritence
practice.
Practice every MCQ with options. Use Show answers when you want the correct option and solution.
86
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Pick an option on a question to see the right answer and solution.
What will be the output of the following Java code?
class Output
{
public static void main(String args[])
{
Object obj = new Object();
System.out.print(obj.getclass());
}
}Select an option to see the answer and solution.
Which of the following is used for implementing inheritance through an interface?
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Which of these is correct way of inheriting class A by class B?
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What will be the output of the following Java program?
class A
{
public int i;
public int j;
A()
{
i = 1;
j = 2;
}
}
class B extends A
{
int a;
B()
{
super();
}
}
class super_use
{
public static void main(String args[])
{
B obj = new B();
System.out.println(obj.i + " " + obj.j)
}
}Select an option to see the answer and solution.
Which of these packages contains abstract keyword?
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Which of these class relies upon its subclasses for complete implementation of its methods?
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Which of these keywords can be used to prevent inheritance of a class?
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Static members are not inherited to subclass.
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Which of these keywords are used to define an abstract class?
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What will be the output of the following Java program?
class A
{
int i;
void display()
{
System.out.println(i);
}
}
class B extends A
{
int j;
void display()
{
System.out.println(j);
}
}
class inheritance_demo
{
public static void main(String args[])
{
B obj = new B();
obj.i=1;
obj.j=2;
obj.display();
}
}Select an option to see the answer and solution.
What will be the output of the following Java program?
class A
{
int i;
}
class B extends A
{
int j;
void display()
{
super.i = j + 1;
System.out.println(j + " " + i);
}
}
class inheritance
{
public static void main(String args[])
{
B obj = new B();
obj.i=1;
obj.j=2;
obj.display();
}
}Select an option to see the answer and solution.
Which of these is not abstract?
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Does Java support multiple level inheritance?
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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();
}
}Select an option to see the answer and solution.
What will be the output of the following Java code?
class A
{
public int i;
protected int j;
}
class B extends A
{
int j;
void display()
{
super.j = 3;
System.out.println(i + " " + j);
}
}
class Output
{
public static void main(String args[])
{
B obj = new B();
obj.i=1;
obj.j=2;
obj.display();
}
}Select an option to see the answer and solution.
What will be the output of the following Java code?
class A
{
int i;
int j;
A()
{
i = 1;
j = 2;
}
}
class Output
{
public static void main(String args[])
{
A obj1 = new A();
System.out.print(obj1.toString());
}
}Select an option to see the answer and solution.
Which of this keyword must be used to inherit a class?
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Which of these class is superclass of every class in Java?
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Which of these keywords cannot be used for a class which has been declared final?
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