Constructors And Methods — Part 2 MCQs with Explanations

final is the correct answer to “Which keyword is used to declare a method that cannot be overridden in Java”. This question is standard in competitive examination syllabi for Constructors And Methods.

Defining a new method with the same name in a subclass is the correct answer to “What is method hiding in Java”. This question is standard in competitive examination syllabi for Constructors And Methods.

To indicate that the method should return a value is the correct answer to “What is the purpose of the "return" statement in a method in Java”. This question is standard in competitive examination syllabi for Constructors And Methods.

Yes, it is a constructor is the correct answer to “In Java, can a method have the same name as the class”. This question is standard in competitive examination syllabi for Constructors And Methods.

The method name and its parameter types is the correct answer to “What is method signature in Java”. This question is standard in competitive examination syllabi for Constructors And Methods.

public is the correct answer to “In Java, which access modifier allows a method to be accessed from any class in any package”. This question is standard in competitive examination syllabi for Constructors And Methods.

A method that belongs to an instance of a class is the correct answer to “What is a non-static (instance) method in Java”. This question is standard in competitive examination syllabi for Constructors And Methods.

The method cannot be overridden in subclasses is the correct answer to “In Java, what does the "final" keyword indicate when used with a method”. This question is standard in competitive examination syllabi for Constructors And Methods.

Declaration specifies method name, return type, and parameters; definition provides the implementation is the correct answer to “What is the difference between a method declaration and a method definition in Java”. This question is standard in competitive examination syllabi for Constructors And Methods.

Defining multiple methods with the same name but different parameters is the correct answer to “In Java, what is the purpose of method overloading”. This question is standard in competitive examination syllabi for Constructors And Methods.

void is the correct answer to “What will be the return type of a method that not returns any value”. This question is standard in competitive examination syllabi for Constructors And Methods.

Stack is the correct answer to “In which area of memory, the system stores parameters and local variables whenever a method is invoked”. This question is standard in competitive examination syllabi for Constructors And Methods.

static is the correct answer to “Which of the modifier can't be used for constructors”. This question is standard in competitive examination syllabi for Constructors And Methods.

instance variables is the correct answer to “The variables declared in a class for the use of all methods of the class are called”. This question is standard in competitive examination syllabi for Constructors And Methods.

Before garbage collection. is the correct answer to “The finalize() method is called just prior to”. This question is standard in competitive examination syllabi for Constructors And Methods.

It can be executed without creating any instance of the class. is the correct answer to “The main method should be static for the reason”. This question is standard in competitive examination syllabi for Constructors And Methods.

0 8 is the correct answer to “Given the following piece of code: class Person{ public int number; } public class Test{ public void doIt(int i , Person p){ i = 5; p.number = 8; } public static void main(String args[]){ int x = 0; Person p = new Person(); new Test().doIt(x, p); System.out.println(x + " " + p.number); } } What is the result”. This question is standard in competitive examination syllabi for Constructors And Methods.

2 and 4 is the correct answer to “Which of the following statements regarding static methods are correct? 1. Static methods are difficult to maintain, because you can not change their implementation. 2. Static methods can be called using an object reference to an object of the class in which this method is defined. 3. Static methods are always public, because they are defined at class-level. 4. Static methods do not have direct access to non-static methods which are defined inside the same class.”. This question is standard in competitive examination syllabi for Constructors And Methods.

Compilation fails due to an error on line 1 is the correct answer to “Determine output: class MyClass{ int i; int j; public MyClass(int i, int j){ this.i = i; this.j = j; } public void call(){ System.out.print("One"); } } public class Test{ public static void main(String args[]){ MyClass m = new MyClass(); //line 1 m.call(); //line 2 } }”. This question is standard in competitive examination syllabi for Constructors And Methods.

A a = new B() is the correct answer to “class A{ A(String s){} A(){} } class B extends A{ B(){} B(String s){ super(s); } void test(){ // insert code here } } Which of the below code can be insert at line 7 to make clean compilation”. This question is standard in competitive examination syllabi for Constructors And Methods.

void examveda() throws IOException{} is the correct answer to “Which of these is a legal definition of a method named examveda assuming it throws IOException, and returns void. Also assume that the method does not take any arguments. Select the one correct answer.”. This question is standard in competitive examination syllabi for Constructors And Methods.

JRE is the correct answer to “Which component is responsible to run java program”. This question is standard in competitive examination syllabi for Constructors And Methods.

JVM is the correct answer to “Which of the below is not a Java Profiler”. This question is standard in competitive examination syllabi for Constructors And Methods.

It can take any number of parameters is the correct answer to “What is true about constructor”. This question is standard in competitive examination syllabi for Constructors And Methods.

Platform independent programming language is the correct answer to “Which statement is true about java”. This question is standard in competitive examination syllabi for Constructors And Methods.

Passing itself to method of the same class is the correct answer to “What is not the use of "this" keyword in Java”. This question is standard in competitive examination syllabi for Constructors And Methods.

At compile time is the correct answer to “When does method overloading is determined”. This question is standard in competitive examination syllabi for Constructors And Methods.

new is the correct answer to “Which of these operators is used to allocate memory for an object”. This question is standard in competitive examination syllabi for Constructors And Methods.

Class.getInstance creates object if class does not have any constructor is the correct answer to “What is true about Class.getInstance()”. This question is standard in competitive examination syllabi for Constructors And Methods.

True is the correct answer to “Method overriding is combination of inheritance and polymorphism”. This question is standard in competitive examination syllabi for Constructors And Methods.

OutOfMemoryError is the correct answer to “Which exception is thrown when java is out of memory”. This question is standard in competitive examination syllabi for Constructors And Methods.

Recursion is a process of defining a method that calls itself repeatedly is the correct answer to “What is Recursion in Java”. This question is standard in competitive examination syllabi for Constructors And Methods.

finalize() is the correct answer to “Which function is used to perform some action when the object is to be destroyed”. This question is standard in competitive examination syllabi for Constructors And Methods.

Every class must contain a main() method is the correct answer to “Which of these statement is incorrect”. This question is standard in competitive examination syllabi for Constructors And Methods.

150 is the correct answer to “What will be the output of the following Java code? class box { int width; int height; int length; int volume; void finalize() { volume = width*height*length; System.out.println(volume); } protected void volume() { volume = width*height*length; System.out.println(volume); } } class Output { public static void main(String args[]) { box obj = new box(); obj.width=5; obj.height=5; obj.length=6; obj.volume(); } }”. This question is standard in competitive examination syllabi for Constructors And Methods.

Mark and sweep model is the correct answer to “Which of the following is a garbage collection technique”. This question is standard in competitive examination syllabi for Constructors And Methods.

1 is the correct answer to “What will be the output of the following Java program? class recursion { int func (int n) { int result; if (n == 1) return 1; result = func (n - 1); return result; } } class Output { public static void main(String args[]) { recursion obj = new recursion() ; System.out.print(obj.func(5)); } }”. This question is standard in competitive examination syllabi for Constructors And Methods.

Private constructor ensures only one instance of a class exist at any point of time is the correct answer to “What is true about private constructor”. This question is standard in competitive examination syllabi for Constructors And Methods.

Young space is the correct answer to “Where is a new object allocated memory”. This question is standard in competitive examination syllabi for Constructors And Methods.

25 is the correct answer to “What will be the output of the following Java program? class box { int width; int height; int length; int volume; void volume() { volume = width*height*length; } } class Output { public static void main(String args[]) { box obj = new box(); obj.height = 1; obj.length = 5; obj.width = 5; obj.volume(); System.out.println(obj.volume); } }”. This question is standard in competitive examination syllabi for Constructors And Methods.