COMPUTER MCQ

What is invoked implicitly only when an object is constructed using ‘new’ operator?

Which return type does the constructor have?

Constructor must have name similar to the following one.

Which of the following initializes the attributes of newly created object using default values based on their data types?

Which of the following does not take any argument?

Default constructor is referred as following type of constructor.

What is default for every class?

Which of the following is mainly designed to perform initializing actions?

Which of the following methods is invoked when a new object is created?

The method’s signature is a combination of the following one.

What is known as different methods with the same name but a different signature in Java?

What is called as different methods with the same name?

Which of the following means “many forms”?

Which is the third step to create an object?

Which is the second step to create an object?

Which is the first step to create an object?

Which of the following variables are initialized with the default values?

Which variables are allocated memory only once per class and are shared by all its objects?

Which are the variables defined within a class, outside any method, with the static keyword?

Which variables are allocated memory from heap area when an object is instantiated?

Which of the following variables are defined within a class but outside any method?

Which of the following has formal parameters that are also local variables?

Which of the following variables are not initialized by default values?

Which of the following are created when the method or block is started and destroyed when the method or block is completed?

What are the variables defined inside methods or blocks called as?

Which of the following variables can be seen in Java?

Which of the following cannot be accessed from class methods?

From where it is advisable to access class variables and class methods to increase their readability?

By which of the following class variables and class methods can be accessed?

Which definitions in the source code specify the things that will become part of every instance object belonging to a class?

Which definitions in the source code specify the things that are part of the class itself?

Which is the keyword used to declare main method?

Which type of method is main0?

In which class is the static method ‘sqrt’ shown (stored)?

What have the designers of Java already provided with class method?

Which is the method defined to provide some general utility but does not directly affect an instance of the class?

Which is the method defined to operate on a particular object or affect that object?

Which of the following method can be used anywhere regardless of whether an instance of the class exists or not?

Which of the following method is available to any other classes or objects?

How are the class methods to the class itself?

Which is the keyword used in front of the method definition to define class methods?

Which of the following variables can be accessed without creating an instance of a class?

Which of the following is a statement to declare class variable tot Window in class with instance variables?

In which of the following are values of class variables stored?

In which of the following are values of instance variables stored?

Which keyword is used to declare class variables or static variables?

What are the variables known as which are declared within a class using static keyword before data type?

Show to which of the following one the variables do not belong to?

To which of the following one does a variable belong to?

When there is a need to have some variable that is shared by all object instances of the same class, the variable should be allocated memory only once per class. What is known as these types of variables?