﻿ Java exercises: Find all combination of four elements of an given array whose sum is equal to a given value - w3resource # Java Array Exercises: Find all combination of four elements of an given array whose sum is equal to a given value

## Java Array: Exercise-43 with Solution

Write a Java program to find all combination of four elements of an given array whose sum is equal to a given value.

Pictorial Presentation: Sample Solution:

Java Code:

``````import java.util.*;
import java.lang.*;
public class Main
{
public static void main (String[] args)
{
int nums[] = {10, 20, 30, 40, 1, 2};
int n = nums.length;
// given value
int s = 53;
System.out.println("Given value: "+s);
System.out.print("Combination of four elements:");
// Find other three elements after fixing first element
for (int i = 0; i < n - 3; i++)
{
// Find other two elements after fixing second element
for (int j = i + 1; j < n - 2; j++)
{
// Find the fourth element after fixing third element
for (int k = j + 1; k < n - 1; k++)
{
// find the fourth
for (int l = k + 1; l < n; l++)
{
if (nums[i] + nums[j] + nums[k] + nums[l] == s)
System.out.print("\n"+nums[i]+" "+nums[j]+" "+nums[k]
+" "+nums[l]);
}
}
}
}
}
}
```
```

Sample Output:

```
Given value: 53
Combination of four elements:
10 40 1 2
20 30 1 2
```

Flowchart: Java Code Editor:

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