InstructionsTotal Questions: 20Total Minutes: 20This ExamTray Free Online Test or Quiz or Trivia tests your Programming Skills on Java Classes and Objects. This test displays answers after finishing the exam for review. You can easily clear Competitive Exams and Job Interview Questions. Students can learn Java basics. Go through Java Theory Notes on Classes before attempting this test. All the Best Challenge SCORE0 / 20Take This Exam 1*2*3*4*5*6*7*8*9*10*11*12*13*14*15*16*17*18*19*20*Q Buttons 1) Java is a ___ programming language. A) Functional B) Object-Oriented C) Theoretical D) All the above 2) In Java programming language, the code is placed inside ___. A) Classes, Interfaces B) Methods C) Blocks D) All the above 3) Properties are implemented using ___ in Java. A) Methods B) Variables C) Interfaces D) All the above 4) A Class in Java is like a ____. A) Prototype B) Instruction Sheet C) Blueprint D) All the above 5) Which is the file extension used for a public Java class source code? A) .j B) .class C) .java D) None 6) Which is the file extension used for a compiled Java class file? A) .j B) .java C) .class D) .cls 7) State TRUE or FALSE. The source-code of An Abstract-Class or Interface is kept inside a .java file. A) FALSE B) TRUE C) - D) - Ad 8) After compilation, an Interface or Abstract-Class is kept in a ___ file in Java programming. A) .java B) .cls C) .class D) .interface 9) State TRUE or FALSE. In Java, a public class or abstract-class or interface must be kept in a separate .java file. A) FALSE B) TRUE C) - D) - 10) In a .java file, how many numbers of public types namely class, interface or abstract can be managed? A) 1 B) 2 C) 3 D) Any number 11) In Java, the keyword used to declare a class is ___. A) Class B) Java C) class D) java 12) A Java class can contain___. A) Variables B) Methods, Constructors C) Inner Classes (A class inside another class) D) All the above 13) How many maximum numbers of objects can be created from a single Class in Java? A) 32 B) 64 C) 256 D) None 14) Creating an object from a class is also called ____. A) Initializing B) Instantiating C) Interfacing D) None of the above Ad 15) The keyword used to create a new object in Java is ___. A) class B) java C) new D) create 16) Choose the correct statements about choosing a name for a class in Java. A) The class name can start with only a letter or underscore or dollar sign. B) The class name can contain numbers C) The class name can not start with a number D) All the above 17) An object is created at __ time in Java. A) Compile-time B) Run time C) Assembling time D) None of the above 18) Choose the correct statement about Java main method. A) The main method is not a required method B) The main method must be declared public static void. C) you can define program flow using the main method. The Java virtual machine calls the main method directly. D) All the above 19) Choose the correct syntax for declaring a Java class below. A) class CLASSNAME { } B) CLASSNAME class { } C) class CLASSNAME; { } D) Class CLASSNAME { } 20) Choose the correct way of creating an object of the below class. class Table { Table(){System.out.println("Table Created");} } A) Table t = new Table; B) Table t = new Table(); C) Table() t = new Table(); D) None of the above FINISH EXAM 1*2*3*4*5*6*7*8*9*10*11*12*13*14*15*16*17*18*19*20*PREV Java Arrays Online Test NEXT Java Classes Objects Online Test 1
