All Questions
1,606 questions
-4
votes
1
answer
71
views
Making a List with Arithmetic Progression [duplicate]
[Doing an assignment where I have to have to run the formula a(n) = 2*n - 5 (n>=1)] 100 times and have those in a list so that I can grab terms and compare and bunch of other stuff. This is what my ...
- 13
0
votes
1
answer
52
views
How Matrix Elements are getting changed?
My Question is when I am initializing matrix2 with case1 approach I am getting the right answer, but when I am initialising matrix 2 with case2 approach I am getting wrong ans.
The if condition is ...
0
votes
2
answers
76
views
For loop condition not working as per expectations
I am writing a code in this code I have to find the minimum steps which can take me from index 0 to index n-1. nums[i] represent the maximum jump I can take from ith index. (Reference leetcode Q45 ...
- 41
-1
votes
1
answer
82
views
How can I get each of my objects to "bounce" off one another when they collide?
Here is my program that has a run method which runs the simulation.
import java.util.*;
public class Game{
public static int size;
public int numObjects;
public static int speedX;
...
- 183
0
votes
2
answers
72
views
trouble with array usage
This is my prompt:
Write a program that reads an arbitrary number of integers that are in the range 0 to 50 inclusive and counts how many occurrences of each are entered. Indicate the end of the ...
- 3
2
votes
2
answers
46
views
how to print an array forward and backward based on boolean flag true/false using single for loop in java?
Arr = {"apple" , "orange" , "pineapple"};
If (boolean)flag = true :
o/p -
pineapple
orange
apple
Else
o/p -
apple
orange
pineapple
I tried using while, how to implement ...
- 29
0
votes
1
answer
54
views
How do I detect the highest z-level object in a 3d array?
I'm working on a simple game in Java (think Rogue 1980), and have a tile rendering system in the draw() method. I'm transitioning from a 2d array for tiles to the 3d array so I can have tiles persist ...
- 3
0
votes
1
answer
59
views
Win condition in game not working. Trouble finding subsequent elements in 2D Array
I have an issue with my Gomoku game win conditions, in which I iterate through the 2D array looking for symbols related to each player. I have the typical nested for loop that goes through the array ...
- 15
0
votes
1
answer
68
views
How to fill array by columns, not rows?
I need to make a 2d array 10 by 10 that looks like this:
0 45 44 42 39 35 30 24 17 9
0 0 43 41 38 34 29 23 16 8
0 0 0 40 37 33 28 22 15 7
0 0 0 0 36 32 27 21 14 6
0 0 0 0 0 31 26 20 13 5
0 0 ...
- 3
2
votes
3
answers
282
views
Looping through an array of strings and counting the number of times a vowel is in each word
Hi I'm trying to loop through an array of strings in count the number of times a vowel is in a word from the sentence.
String st = "Hello Today Is a lovely day";
String[] st1 = st.split(&...
- 21
1
vote
1
answer
2k
views
Tic Tac Toe game beginner level
i am new to programming and i was doing a tic tac toe game on beginner level but i can't manage to get my code to repeat when user puts invalid value. Instead of re-asking the question it ends the ...
- 11
0
votes
3
answers
120
views
How can I check duplicated words within an Array and count them?
I just started programming with JAVA 2 months ago and currently I'm facing an exercise which I don't find the solution for. Until now I control (kind of) the following structures: if (else), do while, ...
- 3
0
votes
0
answers
53
views
In Java, how do I check if a specific element appears in an array? [duplicate]
Please bear with me, I am very new to Java. I have created an array that is created from two text files using File Reader when the program is run, I need to check if an element in the list is a ...
- 11
0
votes
2
answers
113
views
Java - Iterate over an odd length String, two consecutive characters at once
I was reading a file(using BufferedReader & FileReader) line by line and needed to get two successive characters & store it in two distinct variables for every iteration of the loop, but the ...
- 1
-1
votes
1
answer
73
views
Which loop which is best for iterating for strings in java [duplicate]
I always use normal for loop ie.
for(int i=0;i<s.length;i++){}
for iterating through string although its simple way to iterate through string can anyone suggest me other type of looping method ...
