Java Test 3 UPDATED ACTUAL Exam Questions and CORRECT Answers

Java Test 3 UPDATED ACTUAL Exam
Questions and CORRECT Answers
Java developers don't need to know an object's location in memory - CORRECT
ANSWER - true


Java automatically clears the memory once occupied by an object using garbage collection -
CORRECT ANSWER - true


Variables created within a method maintain scope outside that method - CORRECT
ANSWER - false


If you need to make a particular variable belong to a class rather than any individual instance,
what type of variable should you use? - CORRECT ANSWER - static variable


The purpose of a setter method is to allow private data to be modified safely - CORRECT
ANSWER - true


The purpose of a getter method is to return the value of a private field - CORRECT
ANSWER - true



Setters are void return type methods - CORRECT ANSWER - true



Encapsulation - CORRECT ANSWER - A technique for limiting one class's visibility to
another


When you write your own constructor, the default constructor is no longer available - CORRECT
ANSWER - true

, Which keyword is used to allocate memory for a newly created object? - CORRECT
ANSWER - new


A constructor is a special method which is commonly used to set the initial values of an object's
fields. - CORRECT ANSWER - true



Class name should follow Camel casing rules. - CORRECT ANSWER - true


What will happen when you try to access an object reference with a null value? - CORRECT
ANSWER - null pointer exception



If fields aren't initialized, they take on a default value - CORRECT ANSWER - true



Objects are accessed using reference variables. - CORRECT ANSWER - true



What is stored within the stack memory? - CORRECT ANSWER - local variables



what is stored in heap memory? - CORRECT ANSWER - objects


An object reference with a null value points to an empty location in memory - CORRECT
ANSWER - true


In Java, the this keyword can be used to reference the current object's fields and methods. -
CORRECT ANSWER - true


To make fields directly accessible to other classes, the class fields must be marked public -
CORRECT ANSWER - true



You can write more than one constructor in a class - CORRECT ANSWER - true