Java: Print all the LEADERS in the array

Last update on May 09 2025 12:48:25 (UTC/GMT +8 hours)

39. Print all leader elements in array

Write a Java program to print all the LEADERS in the array.

Note: An element is leader if it is greater than all the elements to its right side.

Pictorial Presentation:

Sample Solution:

Java Code:

// Import necessary Java libraries.
import java.util.HashMap;
import java.util.Map;
import java.util.Iterator;
import java.util.Arrays; 

// Define a class named Main.
public class Main
{
    // The main method for executing the program.
    public static void main(String[] args)
    {
        // Define an array of integers.
        int arr[] = {10, 9, 14, 23, 15, 0, 9};
        int size = arr.length;
        
        // Loop through each element in the array.
        for (int i = 0; i < size; i++) 
        {
            int j;
            
            // Find the first element greater than or equal to arr[i].
            for (j = i + 1; j < size; j++) 
            {
                if (arr[i] <= arr[j])
                    break;
            }
            
            // If no greater element is found, print the current element.
            if (j == size) 
                System.out.print(arr[i] + " ");
        }
    }
}

Sample Output:

                                                                              
23 15 9

Flowchart:

For more Practice: Solve these Related Problems:

• Write a Java program to find all "trailing leaders" in an array (numbers greater than all elements to their left).
• Write a Java program to find the leader with the highest value in an array.
• Write a Java program to find the smallest leader in an array.
• Write a Java program to determine if the first or last element in an array is a leader.

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