Java Chapter 1 Exam 2025 Questions and Answers

Java Chapter 1 Exam 2025
Questions and Answers


Hardware - ANSWER✔✔-is the physical aspect of the computer that can be seen.


This is the brain of a computer - ANSWER✔✔-CPU


The speed of the CPU may be measured in - ANSWER✔✔-megahertz / gigahertz


Why do computers used zeros and ones? - ANSWER✔✔-because digital devices have

two stable states and it is natural to use one state for 0 and the other for 1.


One byte contains how many bits? - ANSWER✔✔-bits


network interface controller (NIC) - ANSWER✔✔-is a device to connect a computer to a

local area network (LAN)


machine language - ANSWER✔✔-Computer can execute the code in this level of

programming


A compiler - ANSWER✔✔-translates high-level language program into machine

language program.

, Operating system - ANSWER✔✔-is a program that runs on a computer to manage and

control a computer's activities.


The main method header is written as: - ANSWER✔✔-public static void main(String[]

args)


Java language specification - ANSWER✔✔-is a technical definition of the language that

includes the syntax and semantics of the Java programming language.


Java API - ANSWER✔✔-contains predefined classes and interfaces for developing Java

programs.


Java JDK - ANSWER✔✔-consists of a set of separate programs for developing and

testing Java programs, each of which is invoked from a command line.


Which of the following statements is correct to display Welcome to Java on the console?


A. System.out.println('Welcome to Java');


B. System.out.println("Welcome to Java");


C. System.println('Welcome to Java');


D. System.out.print('Welcome to Java');


E. System.out.print("Welcome to Java"); - ANSWER✔✔-Which of the following

statements is correct to display Welcome to Java on the console?