a) abst b) abstract c) Abstract d) abstract class Answer: b Explanation: ...
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What will be the output of the following Java program?
class A
{
int i;
public void display()
{
System.out.println(i);
}
}
class B extends A
{
int j;
public void display()
{
System.out.println(j);
}
}
class Dynamic_dispatch
{
public static void main(String args[])
{
B obj2 = new B();
obj2.i = 1;
obj2.j = 2;
A r;
r = obj2;
r.display();
}
}
What will be the output of the following Java program? class A ...
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What will be the output of the following Java program?
class Abc
{
public static void main(String[]args)
{
String[] elements = { “for”, “tea”, “too” };
String first = (elements.length > 0) ? elements[0]: null;
}
}
What will be the output of the following Java program? class Abc { ...
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What will be the output of the following Java program?
final class A
{
int i;
}
class B extends A
{
int j;
System.out.println(j + ” ” + i);
}
class inheritance
{
public static void main(String args[])
{
B obj = new B();
obj.display();
}
}
What will be the output of the following Java program? final class A ...
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What will be the output of the following Java program?
class Alligator
{
public static void main(String[] args)
{
int []x[] = {{1,2}, {3,4,5}, {6,7,8,9}};
int [][]y = x;
System.out.println(y[2][1]);
}
}
What will be the output of the following Java program? class Alligator { ...
View QuestionWhich of these is supported by method overriding in Java?
a) Abstraction b) Encapsulation c) Polymorphism d) ...
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Choose 3 valid data-type attributes/qualifiers among “final, static, native, public, private, abstract, protected”
public interface Status
{
/* insert qualifier here */ int MY_VALUE = 10;
}
Choose 3 valid data-type attributes/qualifiers among “final, static, native, public, private, abstract, protected” public interface Status ...
View QuestionWhich of these is correct way of calling a constructor having no parameters, of superclass A by subclass B?
a) super(void); b) superclass.(); c) super.A(); d) super(); Answer: d
View QuestionWhich of these keywords can be used to prevent Method overriding?
a) static b) constant c) protected d) final Answer: d Explanation: To disallow a method from being overridden, ...
View QuestionWhat is the process of defining a method in a subclass having same name & type signature as a method in its superclass?
a) Method overloading b) Method overriding c) Method hiding d) None of the mentioned Answer: b
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