Beginner Quizzes – Java Arrays

The following Java exercise(s) are designed for beginner level programmers. If the level is too hard, then I recommend reading my article about this topic, which offers a theoretical explanation including more exercises. Read More: Java Arrays

Article: Java arrays
Quizzes: Beginner  Intermediate  Advanced 

arrays-green

 

Quiz 1: Arrays in Java

What happens when you try to compile and run the following program?

import java.util.Arrays;

public class MyArray {

	public static void main(String[] args){
		char[] arrayChar = new char[4];
		arrayChar[0] = 't';
		arrayChar[1] = 'o';
		arrayChar[2] = 'c';
		arrayChar[3] = 'n';
		Arrays.sort(arrayChar);
		for(int i = 0; i < arrayChar.length; i ++ ) {
			if(i == 3 || i == 0) {
				System.out.print("-" + arrayChar[i]);
			}
		}
	}
}

Select the correct answer.



Please, leave your questions, feedback and suggestions in the comments below! If you need more explanation by any of the answers, just let me know to update it for you!

Quiz 2: Java arrays

What happens when you try to compile and run the following program?

public class MyArray {

	int[] array1 = {2,3,7,4,5,4 };
	int[] array2 = {3,4,5,6,2,2,44,5 };

	void method(){
		for(int i = 0; i < array1.length; i ++ ) {
			if(array1[i] != 4) {
				System.out.print("-x" + array1[i]);
			}
		}
	}
	public static void main(String[] args){
		MyArray ma = new MyArray();
		ma.method();
		System.out.print("-x" + ma.array2.length);
	}
}

Select the correct answer.



Please, leave your questions, feedback and suggestions in the comments below! If you need more explanation by any of the answers, just let me know to update it for you!

Megisoft.com offers a practical method to learn and improve your Java skills. It avoids unnecessary long boring theoretical explanations, but it uses many exercises and quizzes. The author of Megisoft is Sar Maroof who has more than a decade of experience with web development mainly with Java, MySql, HTML and more..
Article: Java arrays
Quizzes: Beginner  Intermediate  Advanced 


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Sar Maroof's New Book "Java Quizmaster For Beginners"
Author: Sar Maroof
Many years of experience with developing web applications mainly with Java.
Sun Certified JSP as well as EJB
CIW Certified Internet Webmaster
Applied Science in Physics HBO Amsterdam
Bachellor Science in Physics at Basra university.

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2 Comments

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  1. Awesome website! I love all your quizzes!

  2. Hello my name is Nadine and I just wanted to tell you that you are doing a great job here!

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