Thread: Printing Index of Output Array

Hi All,
I want to Display the Index of output Array.

here is the code:

 
import java.util.ArrayList;
import java.util.List;
 
public class selection {
    private static int[] numbers= { 1, 2, 4, 8, 16, 32, 64, 128, 250, 250, 250, 250, 250, 250, 250 };
    private static int[] sumsum= new int[numbers.length];
 
    private static int sum= 1759;
 
    private static void solution(List<Integer> solution) {
 
        System.out.println(solution);
    }
 
    private static void solve(int[] numbers, int i, int sum, List<Integer> solution) {
 
        if (sum == 0) 
            solution(solution);
        else
            for (; i < numbers.length && sumsum[i] >= sum; i++) {
                if (numbers[i] <= sum) {
                    solution.add(0, numbers[i]);
                    solve(numbers, i+1, sum-numbers[i], solution);
                    solution.remove(0);
                }
            }
    }
 
    public static void main(String[] args) {
 
        for (int s= 0, i= numbers.length; --i >= 0; ) {
            sumsum[i]= numbers[i]+s;
            s+= numbers[i];
        }
        solve(numbers, 0, sum, new ArrayList<Integer>());
    }
}

Can you explain what you are trying to do and Give an example?

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I want to know which array index is selected

How is an index selected? Have the method return the index's value.

How do i Print that too

System.out.println("theIndex= "+ theIndex);

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If the code saves the the index values in an ArrayList, they could be printed when desired.

Can you make a simpler example with a small array and a small sum so it is very easy to see what the code is supposed to do.
Then show what the desired output is supposed to be for that simple example.
Using ... for desired output does not say enough.

What is the current output from the simple version?
What is the desired output from the program?

Please edit your post and wrap your code with code tags:
[code=java]
YOUR CODE HERE
[/code]
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Have you looked at saving the indexes in an ArrayList?

Please edit your post and wrap your code with code tags:
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YOUR CODE HERE
[/code]
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help me with the coding

Before starting coding, do some analysis to find out when and where the index values are determined.
Start by finding where the index is available. Add some println() statements to print out an index when it is found.

Sorry, I don't write code for students.
If you did not write the code that you have posted, I suggest that the first thing you need to do is figure out how the code works and add some comments to the code describing how it solves the problem. For example what is in the sumsum array and what is it used for?

--- Update ---

I am new to Coding in JAVA.

What computer languages do you know?

I'm here to help students learn programming. If you are not a student and are not trying to learn programming, I suggest that you hire a programmer to do the programming work you need done.