How to change array elements?

Let’s learn how to change array elements. The most accurate or helpful solution is served by Stack Overflow.

There are ten answers to this question.

Best solution

Change all array elements which include a specific string

array = ["Spam is bad", "Ham is good"] I would like select the element(s) from the array which include(s) the word 'good' and set the string to a new variable. How could I do this?

Answer:

It's almost as you typed your title: array.select {|s| s.include? "good"} Here's the doc:...

Read more

Dru at Stack Overflow Mark as irrelevant Undo

Other solutions

Given an array of 'n' integers. We are allowed to apply sign change operation on all elements. How can we find the minimum possible non-negative array sum efficiently?

For example:  Consider this array A= { 2, 1, 3, 4, 2}. Since A can be changed to A' = { -2, -1, -3, 4, 2 },the minimum possible non-negative sum is zero for this array.

Answer:

Same as problem of splitting the array into 2 subarrays such that the difference between the sum of...

Read more

Anonymous at Quora Mark as irrelevant Undo

How can I quickly sort an array of elements that is already sorted except for a small number of elements (say, up to 1/4 of the total) whose positions are known?

Example: [1, 2, 3, 4, 8, 6, 7, 8, 2, 10, 11, 3, 13, 14, 15, 16] The array is almost sorted except for elements at position 4, 8, 11. Given this array and the knowledge that these elements may be out-of-order, what's a time efficient way to sort the array...

Answer:

None of these answers actually addressed how to identify a small number of out of order elements just...

Read more

Mark Gordon at Quora Mark as irrelevant Undo

An array inside a 2d array

Hi Zlatko, I added some code to the program in topic " An array inside a 2D array ". After the user enter five numbers and this numbers are added to the beginning of a matrix, I wanted to know if this five numbers match with the numbers inside...

Answer:

Hello Raul. If you don't need to keep the last row, then you can go back to an array of 5 rows as you...

Read more

Miningco.com Mark as irrelevant Undo

Changing size of array?

I'm doing a project for my java class and I need to change the size of an array. I know you can't actually change the size but I've heard you can do it some other way. Basically I'm writing a class for a list of int's and one of the methods I'm working...

Answer:

Addressing your last sentence. You can easily have the identifier point to a different array. Here's...

Read more

Kyle at Yahoo! Answers Mark as irrelevant Undo

How to create an array list of 10 jobs using the bubble sort method?

So I have to sort the array of jobs using the modified bubble sort. And then print the sorted array in output. But I'm stuck because I'm not sure as to how I can approach that. This is what I have so far for my Driver.Java, but I know I must make corrections...

Answer:

you have to swap the jobs themselves not just the integer value. // In main you write like this: swap...

Read more

Nicaragu... at Yahoo! Answers Mark as irrelevant Undo

How to sort C++ array in descending order (code given)?

How can I change this function to display elements in descending order? It's also not displaying all the elements. Currently it gives the array in ascending order. I've tried ...show more

Answer:

Array's are passed by what...reference. You are passing values out of a function to your main file....

Read more

XO5FFJZFJTO4RGBIPUCVKKH2C4 at Yahoo! Answers Mark as irrelevant Undo

Import array to arraylist except null elements?

Another java newbie question. How can I import an array into an arraylist except null values? I find array to be unyielding when it comes to moving around and removing elements and reducing/increasing the size of the array. I need to use array during...

Answer:

I don't think that's possible, although I could see how you might think that's possible, since an array...

Read more

Myth at Yahoo! Answers Mark as irrelevant Undo

You are given an array of n elements [1,2,....n]. For example {3,2,1,6,7,4,5}. Now we create a signature of this array by comparing every consecutive pair of elements. If they increase, write I else write D.?

You are given an array of n elements [1,2,....n]. For example {3,2,1,6,7,4,5}. Now we create a signature of this array by comparing every consecutive pir of elements. If they increase, write I else write D. For example for the above array, the signature...

Answer:

List FindPermute(String S) {     List<Integer> perm = new ArrayList<Integer>();    ...

Read more

Suraj Adhikari at Quora Mark as irrelevant Undo

Adding specific elements from one array into another in Java?

Hi I'm stuck. I want to add the contents in index 4 of array 1 into index 0 of array 2 then add the contents of index 4+32 in array 1 to index 1 of array 2 and so forth. The index 6 array 1 into index 2 in array 2. I have tried everything including converting...

Answer:

If I understand the question correctly, you're copying exactly 4 elements into array2, correct? So why...

Read more

alf shoemanuer at Yahoo! Answers Mark as irrelevant Undo

Related Q & A:

Just Added Q & A:

Find solution

For every problem there is a solution! Proved by Solucija.

  • Got an issue and looking for advice?

  • Ask Solucija to search every corner of the Web for help.

  • Get workable solutions and helpful tips in a moment.

Just ask Solucija about an issue you face and immediately get a list of ready solutions, answers and tips from other Internet users. We always provide the most suitable and complete answer to your question at the top, along with a few good alternatives below.