Just so you know<\/p>\n
With OnlineExamMaker quiz software<\/a>, anyone can create & share professional online assessments easily.<\/p>\n<\/div>\n Robustness: Java was designed with a strong emphasis on error prevention and robustness. It includes features like automatic memory management (garbage collection) and exception handling to minimize runtime errors and crashes.<\/p>\n Multi-threading: Java provides built-in support for multi-threading, allowing developers to create concurrent programs with ease. This is crucial for developing applications that can handle multiple tasks simultaneously.<\/p>\n 1. What is Java primarily known for? Answer: c) Being an object-oriented programming language<\/p>\n 2. What is the bytecode in Java? Answer: d) Intermediate code that runs on the Java Virtual Machine (JVM)<\/p>\n 3. Which keyword is used to define a constant variable in Java? Answer: b) final<\/p>\n 4. What is the main advantage of Java’s platform independence? Answer: c) Ability to run on any platform with a JVM<\/p>\n 5. Which method is used to start the execution of a Java program? Answer: a) main()<\/p>\n 6. In Java, what is the purpose of the “new” keyword? Answer: a) To create a new object instance<\/p>\n 7. What is the correct syntax to declare an array in Java? Answer: a) int[] numbers = {1, 2, 3};<\/p>\n 8. Which access modifier makes a class or member accessible only within the same package? Answer: d) default<\/p>\n 9. What is the output of the following Java code?<\/p>\n “`java a) 10 Answer: c) 12<\/p>\n 10. Which method is used to read input from the user in Java? Answer: d) Scanner.nextLine()<\/p>\n 11. Which keyword is used to create a subclass in Java? Answer: b) extends<\/p>\n 12. What does the “NullPointerException” indicate in Java? Answer: d) An attempt to access an object that is null.<\/p>\n 13. Which data type is used to store single characters in Java? Answer: a) char<\/p>\n 14. What is the purpose of the “break” statement in Java? Answer: a) To exit a loop or switch statement<\/p>\n 15. Which of the following is NOT a valid Java identifier? Answer: b) 123var<\/p>\nArticle outline<\/h3>\n
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<\/p>\nPart 1: 30 Java quiz questions & answers<\/h3>\n
\n a) Being a markup language
\n b) Being a scripting language
\n c) Being an object-oriented programming language
\n d) Being a low-level programming language<\/p>\n
\n a) Code written in Java syntax
\n b) Code that runs directly on the CPU
\n c) Platform-specific machine code
\n d) Intermediate code that runs on the Java Virtual Machine (JVM)<\/p>\n
\n a) constant
\n b) final
\n c) static
\n d) immutable<\/p>\n
\n a) Faster execution of code
\n b) Lower memory consumption
\n c) Ability to run on any platform with a JVM
\n d) Access to native OS functions<\/p>\n
\n a) main()
\n b) start()
\n c) execute()
\n d) run()<\/p>\n
\n a) To create a new object instance
\n b) To define a new class
\n c) To allocate memory for variables
\n d) To initialize an array<\/p>\n
\n a) int[] numbers = {1, 2, 3};
\n b) array numbers = [1, 2, 3];
\n c) int numbers = {1, 2, 3};
\n d) array int numbers[3];<\/p>\n
\n a) public
\n b) protected
\n c) private
\n d) default<\/p>\n
\nint x = 5;
\nSystem.out.println(x++ + ++x);
\n“`<\/p>\n
\n b) 11
\n c) 12
\n d) 15<\/p>\n
\n a) System.out.print()
\n b) System.in.read()
\n c) System.input()
\n d) Scanner.nextLine()<\/p>\n
\n a) subclass
\n b) extends
\n c) inherits
\n d) super<\/p>\n
\n a) The program has a syntax error.
\n b) A variable is declared but not initialized.
\n c) An invalid cast operation is performed.
\n d) An attempt to access an object that is null.<\/p>\n
\n a) char
\n b) String
\n c) Character
\n d) letter<\/p>\n
\n a) To exit a loop or switch statement
\n b) To end the execution of a program
\n c) To skip the current iteration of a loop
\n d) To resume the execution after a pause<\/p>\n
\n a) _variable
\n b) 123var
\n c) $name
\n d) myVariable<\/p>\nPart 2: Download Java questions & answers for free<\/h3>\n