﻿ Java exercises: Find common elements from three sorted arrays - w3resource # Java Array Exercises: Find common elements from three sorted arrays

## Java Array: Exercise-25 with Solution

Write a Java program to find common elements from three sorted (in non-decreasing order) arrays.

Pictorial Presentation: Sample Solution:

Java Code:

``````import java.util.*;
public class Exercise25 {
public static void main(String[] args) {
ArrayList<Integer> common = new ArrayList<Integer>();
int array1[] = {2, 4, 8};
int array2[] = {2, 3, 4, 8, 10, 16};
int array3[] = {4, 8, 14, 40};
int x = 0, y = 0, z = 0;
while (x < array1.length && y < array2.length && z < array3.length){
if (array1[x] == array2[y] && array2[y] == array3[z]){
x++;
y++;
z++;
}
else if (array1[x] < array2[y])
x++;
else if (array2[y] < array3[z])
y++;
else
z++;
}
System.out.println("Common elements from three sorted (in non-decreasing order ) arrays: ");
System.out.println(common);
}
}
```
```

Sample Data: array1 = 2, 4, 8
array2 = 2, 3, 4, 8, 10, 16
array3 = 4, 8, 14, 40

Sample Output:

```
Common elements from three sorted (in non-decreasing order ) arrays:
[4, 8]
```

Flowchart: Visualize Java code execution (Python Tutor):

Java Code Editor:

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