All Questions
122 questions
0
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3
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1k
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Why do we initially set min and max to the first value in the array when trying to find the minimum and maximum value?
I've been learning Java for a while and I've run into a problem I can't figure out. I am currently learning arrays and how to iterate through them using loops. I generally understand how the if ...
- 1
0
votes
2
answers
449
views
How do I add every array in a list with every nth element in the array
I have a function public static void sortedlist(int[] l, int r) that takes an array int[] l and returns a new array where every non-negative element in the list would be added with every element until ...
- 269
0
votes
2
answers
66
views
How to print index of all maximum numbers without losing the index count?
Let's say I have created an array
int[] maxNums = {62, 24, 54, 92, 12, 45, 75, 43, 46, 98, 23, 98};
I know how to print the maximum and its index. Here I have two repeated numbers 98, how do I print ...
- 19
0
votes
2
answers
51
views
how to add elements in each row seperately and print output in 2D array
Lets assume i have a 2x3 matrix where row denote student and column denote marks.
eg:[[67,80,56],
[32,26,31]]
need to find the average of each row and assign a grade based on avg. if avg>40 then ...
0
votes
1
answer
529
views
Java: For Loop iterating strangely causing out of bounds errors
I have a for loop that iterates through a string of numbers. I also have an array that is the same length of the string consisting of numbers that represent that index's max value. The code iterates ...
- 35
0
votes
2
answers
381
views
For loop to iterate through user input to calculate cost?
I'm working in Java. So what I'm trying to do is, take the user input from subscriberPackage
public static String subscriberPackage() { //Method to get the customers name
Scanner sc = ...
0
votes
1
answer
314
views
How to loop through 2 different arrays in one loop in Java
I'm creating a method in my program that tells whether the if the user is at risk of covid through these question markers that has specific health risk categories (low, medium, high). The expected ...
-1
votes
3
answers
227
views
loop through two different Arrays java
sorry if this is an stupid question or anything; but I'm having a problem looping through two different objects in java. one of them is a hashmap and the other one is an arraylist. the objects look ...
-3
votes
2
answers
60
views
Java String Array Iteration: Is there any way to make this simpler?
Good day,
I'm new to Java and have been practicing with Nested Loop iterations. I was wondering if there is any simpler way on how to do this? Especially on the part where I had to put this [j+1].
...
0
votes
1
answer
547
views
Check that a LinkedList contains all the elements of an array
I would like to write a method public boolean containsArray(int[] arr) which returns true if all the elements of the array are in the list, otherwise it returns false.
I would like to only use the ...
0
votes
1
answer
38
views
I would like to display numbers in a certain way but it's off-centre
I want to display number in rows, where the number of rows is asked as user input and the number of columns is always 4. It all works fine but it's off-centre. This is my code:
public class Practise {
...
0
votes
2
answers
190
views
Iterating over a char array inside nested loops
I'm creating a Hangman game in Java, but I'm having some trouble with the loops I use to compare a letter to a word (char Array):
public class Hangman{
static String seleccionar(){
//Se ...
- 31
0
votes
2
answers
38
views
sorting objects into an array of elements and an array with several elements
I have to sort a list of students, depending on the specialty they applied to.
My variabile for array in object is String [] specializations;
The objects I introduced look like this:
x.add (new ...
1
vote
3
answers
3k
views
Nested For Loop in Java method to check for Duplicates
I am a beginner and I have been trying to debug my code for several days now to figure out why my loop in isDuplicate does not seem to work correctly. I've scoured the site for ideas but none seem to ...
- 11
1
vote
3
answers
1k
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Generate all possible string combinations by replacing the hidden “#” number sign
My task is to generates all possible combinations of that rows without the hidden # number sign. The input is XOXX#OO#XO and here is the example of what the output should be:
XOXXOOOOXO
XOXXOOOXXO
...
