467 Answered Questions for the topic Java

Java Sql

05/02/23

Develop an application that interviews a patient for general medical history data
Please show steps clearly. Do it in Apache Netbeams or VS CODE1. Develop an application that interviews a patient for general medical history data using abinary tree to drive the interview process.... more
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Java

04/16/23

Need help figuring out what is wrong with my Java code
Here is the problem that I am working on: "You should implement the function String findLongestName(String [] names) which takes an array of Strings as an input containing a list of names, and... more
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Java

04/14/23

FOR loop question in Java
You need to implement this function public int countBlocks(int levels) that takes the number of levels as an input argument and returns the number of blocks required to build a pyramid made up of... more
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04/09/23

why do I need the type and the new keyword with the type again in Java?

When creating an object why do I need the type and the new keyword in java, for example.Scanner scan = new Scanner(System.in);it seems repetitive to say Scanner twice.
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Java

01/30/23

Write the function divSpecial that takes an positive integer n1 and returns a string according to the following conditions .
divSpecial (n1) Write the function divSpecial that takes an positive integer n1 and returns a string according to the following conditions - if n1 is divisible by 5, it should return “divFive” - if... more
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Java

01/22/23

Write a program in java that reverses a String without using any libraries that contain a built-in reverse() function.
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Java Javascript

01/21/23

How Does payment work with Wyzant
Do you manually have to pay a tutor for a lesson or it automatically charges your card? Also does your card get charged if a tutor cancels a lesson, or if a lesson gets cut short?
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01/09/23

How to make object move 3 steps ahead randomly in any direction (JAVA)

The following code allows for a "bird" to move one step on GUI in any random direction. How do you make the bird move 3 steps ahead at once randomly in any direction?double r = Math.random(); if (r... more
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12/16/22

java question.
DATA BLOCK - city list and time difference from EST String[] cities = { "London", "Paris", "Rome", "Seattle", "Tokyo" }; int[] timeDeltas = { 6, 7, 8, -3, -12 }; // TODO: create the ArrayList... more
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12/14/22

Two simple questions
29.What is the process called where, at execution time, the type of object to which a variable refers determines the actual method do use. 30.What keyword must a concrete class use in its... more
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12/14/22

Java questions.
16. True or False?  As long as a superclass' constructors are declared as public, the subclasses will inherit the constructors when they extend that superclass.19. True or False?  If a superclass... more
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12/14/22

java questions.
2. Which keyword is always a reference to the object in which it occurs?5. True or False?  It is good practice to declare instance variables public, for easy access, and to declare getters and... more
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12/10/22

OBJECT-ORIENTED PROGRAMMING
 use java•  Use keyword extends to create a class that inherits attributes and behaviors from another class.•  Use access modifier protected in a superclass to give subclass methods access to these... more
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12/10/22

CLASSES AND OBJECTS
Create class IntegerSet. Each IntegerSet object can hold integers in the range 0–100. The set is represented by an array of booleans. Array element a[i] is true if integer i is in the set. Array... more
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Java

12/09/22

write a program in java using while loop of accept 5 numbers from the user and print the addition

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12/03/22

Object oriented programming (GUI) Need help with a question
write a program that can be used to help a teacher enter the grades of his/her students for an assignment.Your program should request the teacher to enter the following information for each... more
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Java

12/01/22

how to apply for Tutor?
hey my name is Vikash I'm from India I m a computer science and engineering graduate doing freelancing and am also a subject matter expert on the Chegg platform, can I apply for Tutor on the... more
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11/28/22

Complete Binary Tree in Java (ArrayList implementation)
inOrder, postOrder, and preOrder seem to be printing extra numbers. Why is this happening? import java.util.*;public class CBT{  private ArrayList tree;  public CBT(){ tree = new... more
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Java

11/28/22

Turning a csv file into a 2d array?
how can you turn a csv fle into an array using basic java no 3rd party plugins?
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Java

10/26/22

The following should print "ver" and "ever". Write the methods that will make the program work.
public static void main (String[] argv) {char[] word = {'n', 'e', 'v', 'e', 'r'};char[] word2 = {'r','i', 'v', 'e', 'r'};char[] word3 = {'e', 'v', 'e', 'r'};char[] suffix = commonSuffix (word,... more
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Java

10/26/22

Write a program called HistogramGeneration.java that takes the data array, uses it to generate a corresponding histogram array and draws the rectangles.

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Java

10/26/22

Write a program called Histogram.java that takes the histogram array and draws the rectangles.

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Java

10/26/22

write a method called leftRotate (int[] A) that performs left rotation. Then, write a method called leftRotateByK (int[] A, int k) that achieves a left rotation of an integer array by k positions.
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Java

10/26/22

write a program that takes an array and draws rectangles in java.
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Java

10/26/22

Java coding challenges
My code is below and I'm wondering how to print Take Care like ekaT eraC but it doesn't print that way.public class challenge4 {public static String everyOtherWordBackwards(String str){ String... more
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