Java Method Overloading Quiz

What is method overloading in Java?

• Creating methods that cannot be distinguished by their names

• Defining multiple methods with the same name but different parameters

• Using the same method for different classes

• Overriding methods in subclasses

Which of the following is NOT a valid reason for method overloading?

• Different return types

• Different parameter types

• Different number of parameters

• Different order of parameters

In method overloading, how does Java distinguish between methods?

• By the method name only

• By the access modifiers

• By the number and type of parameters

• By the return type only

What will happen if you try to overload methods with the same name and same parameter types but different return types?

• It will compile successfully

• It will throw a compilation error

• It will execute the second method only

• It will execute the first method only

What does 'pass by value' mean in Java?

• Passing the memory address of the variable

• Passing a copy of the variable's value

• Passing the variable's data type

• Passing the actual object reference

In the context of method overloading, what does 'pass by reference' imply?

• You cannot change the object inside the method

• You can change the object inside the method

• You pass the object's data type

• You pass a copy of the object

What is a composite object in Java?

• An object that contains other objects

• An object that cannot be instantiated

• An object that is a subclass of another object

• An object that has no attributes

How do you declare an array of objects in Java?

• className[] arrayName = new className[size];

• arrayName className[] = new className[size];

• arrayName = new className[size];

• className arrayName = new className[size];

Which of the following statements about method overloading is true?

• Overloaded methods cannot be in the same class

• Overloaded methods can only differ by return type

• Overloaded methods can have the same name but must differ in parameters

• Overloaded methods must have different names

When an array is passed to a method, the method receives ____________

• A copy of the whole array.

• A copy of the first element of the array.

• The reference of the array.

• The length of the array.