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Java - Test Questions on 'Methods' - 5 questions found


Which of the following is not true for abstract classes ?Core Java
Abstract Class is only meant to be sub classed and not supposed to be instantiated.
Abstract class handlers can be used to handle derived class objects.
We can't have an abstract class without abstract methods.
Abstract class has member elements.

  abstract class  abstract methods

Other name for setter methods is .. Core Java
Getter Methods
Redefinition Methods
Final methods
Mutator methods

  methods

Which of the following can be marked static ?Core Java
Methods , Variables and Initialization Blocks.
Methods , Variables , Initialization Blocks and Outer Classes and nested Classes.
Methods , Variables , Initialization Blocks and Outer Classes.
Methods , Variables , Initialization Blocks and nested Classes.

  oops  java  static  nested classes  static nested classes

Which of the following cannot be marked static ?Core Java
Constructors , Classes ( Outer ) , Classes ( nested ), Interfaces , Local variables , Inner Class methods and instance variables.
Constructors , Classes ( Outer ) , Interfaces , Local variables , Class variables , Class Methods , Inner Class methods and instance variables.
Constructors , Classes ( Outer ) , Interfaces , Local variables , Inner Class methods and instance variables.
Constructors , Classes ( Outer ) , Classes (Nested), Interfaces , Local variables , Inner Class methods and instance variables.

  oops  java  static  nested classes  static nested classes

What is the problem with following code ?

public class Car extends Vehicle{
   int x;

   void Car(int y){
      x = 5;
   }

   void Car(){
      this(5);
   }
}
Core Java
We cannot use this() within normal method
We cannot chain methods
We cannot overload constructors
We cannot use return type void with overloaded methods

  constructor







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