494 Answered Questions for the topic Java

04/05/20

Find and correct the error(s) in each of the following code fragments :
1. The following code should create an integer array and increment all the array elements by 1:int[] a = new int[5]; for( int i=0; i <= a.length; i++ ) ++a;2. The following code should compare... more
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Java

03/12/20

Cannot figure how to output numbers horizontally in Java
This is my code, it is suppose to output 10 numbers per line but it only works with the #7. I am ask to make the code user input-able, which that part is done. import java.util.Scanner; public... more
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02/15/20

Help is needed writing a simple JAVA class to check to see if a year is a leap year
A student wrote to me asking for help writing a JAVA program to calculate leap year. The assignment specified that the year must be evenly divisible by 4, but not 100. However, years divisible by... more
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Java

02/13/20

Why is my java (Tiny Encryption Algorithm) program not working?
package com.teaAlgo;class TEA { // Variables static int sum = 0x0; static int delta = 0x9e3779b9; static int lText = 0x12345678; static int rText = 0x9abcdef; static int key[] =... more
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02/12/20

Generate random numbers within a range with pre-defined sum
What if I want to generate random numbers within a range with a fixed sum?? For example: I want to generate 50 numbers between 50 - 100 but with a fixed sum of 4650 so that I would produce a mean... more
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02/12/20

How to generate random numbers with specific mean
Is there any formula that I can understand which will allow me to generate random numbers with a specific mean. I'm using java. Thanks
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02/08/20

Java Programming Question: Intro to Computer Science
I'm working on a project for my computer science class in java and it is a travel agency. In one of the classes, Basket, I need to make an array of objects of type Reservation. But I also have to... more
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12/20/19

Which Skills do the IT companies Looking for?
What are thing we sholud keep in mind to prepare ourselfs for IT companies job.
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12/18/19

Explicitly create Class for joining table or not for Java JPA many-to-many relationships
Hi,For those who have used Java JPA (Hibernate or EclipseLink) I wanted to ask your opinion on the best way to represent m2m relationships in the Entity classes. The choice as I see it is to... more
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12/12/19

How do you write a program using Javafx that takes a single, positive integer, and n as a command-line argument? The program should then plot n evenly spaced points around a circle.
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12/12/19

Using Java, write a program that takes a single, positive integer, n as a command-line argument. The program should then plot n evenly spaced points around a circle

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12/12/19

Write a program that takes a single, positive integer, n as a command-line argument. The program should then plot n evenly spaced points around a circle

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11/10/19

Java String class
So we are given to write the exact output of the following code:class stri123{ public static void main(String[] args) { String name = "University Grants Commission"; boolean sword... more
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11/09/19

Java Program / methods
One sales shop offer following discount rates to customers based on their bill value.Bill value Range Discount ratebill value >= 10000 discount 20%bill value >= 5000 disocunt 10%bill value... more
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11/08/19

Java Number Patterns
How do we print,_ _ _ _1_ _ _2 1_ _3 2 1_ 4 3 2 1In Java?Please help, I don't know how to get started
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Java

11/08/19

My Java program will not run in the browser, no sound either. Why?
import java.applet.*;import java.awt.*;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.applet.AudioClip;@SuppressWarnings("deprecation")public class StopWatch... more
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Java

11/06/19

Java Programming applet
Hello, I have two assignments StopWatch.Java and Vote.Java. I'm supposed to use applet, but for some reason my programs don't run in the browser. Originally I was using Chrome and I found out that... more
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10/26/19

Java Time Calculator Program Help
Write a program using JAVA and FINAL variables that asks the user to enter a number of seconds. There are 60 seconds in a minute. If the number of seconds entered by the user is greater than or... more
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10/12/19

Java - arrays & loops
Question : Write a Java program to read integer data set(size of n<10) into an array and display its data graphically by plotting each numeric value as a bar of asterisks as shown in the... more
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10/03/19

Java Switch Case
How do we write the following code using switch statement ?if(option == 1) vehicle = "Motor Cycle" ;else if(option == 2) vehicle = "Car";else if(option == 3) || (option == 4)vehicle = "Heavy... more
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10/03/19

Java Programming
Hi, I'm new to Java. I've been working on this question, wrote the code and checked the results with some examples and it seems to be doing fine. I would be glad if any of the tutors can check the... more
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Java

10/03/19

I have a session scheduled what do I need to do before
What do I need to do
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10/01/19

Java Switch Case
Why is the output of the code 14, not 8 : alpha=3+5=8?public class Application4{public static void main(String[] args) {int alpha=3;int beta=5;switch (beta){case 3:alpha=alpha+3;case... more
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Java

09/30/19

why displaying parent objects by child class object only giving default values !!?
class one{ int age; String name;}class two extends one{ void display() { System.out.println(age+name); }}class extenddoubt{ public static void main(String args[]) { one o=new... more
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Java

09/27/19

Question on binary number. The input is n binary number in n different rows, find the unrepeated binary row.
Question on binary number. The input is n binary number in n different rows, find the unrepeated binary row.write java programe
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