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Java Array Exercises: Remove a specific element from an array

Java Array: Exercise-7 with Solution

Write a Java program to remove a specific element from an array.

Pictorial Presentation:

Java Array Exercises: Remove a specific element from an array

Sample Solution:

Java Code:

import java.util.Arrays; 
public class Exercise7 {
 
public static void main(String[] args) {
   int[] my_array = {25, 14, 56, 15, 36, 56, 77, 18, 29, 49};
   
   System.out.println("Original Array : "+Arrays.toString(my_array));     
   
  // Remove the second element (index->1, value->14) of the array
   int removeIndex = 1;

   for(int i = removeIndex; i < my_array.length -1; i++){
        my_array[i] = my_array[i + 1];
      }
// We cannot alter the size of an array , after the removal, the last and second last element in the array will exist twice
    System.out.println("After removing the second element: "+Arrays.toString(my_array));
 }
 }

Sample Output:

Original Array : [25, 14, 56, 15, 36, 56, 77, 18, 29, 49]                                                     
After removing the second element: [25, 56, 15, 36, 56, 77, 18, 29, 49, 49] 

Flowchart:

Flowchart: Java exercises: Remove a specific element from an array

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Java Code Editor:

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Java: Tips of the Day

How to sort an ArrayList?

Collections.sort(testList);
Collections.reverse(testList);

That will do what you want. Remember to import Collections though!

Ref: https://bit.ly/32urdSe