Java: Find heights of the top three building in descending order from eight given buildings

Last update on May 13 2025 13:00:13 (UTC/GMT +8 hours)

Find Top Three Building Heights

Write a Java program to find the heights of the top three buildings in descending order from eight given buildings.

Input:

0 ≤ height of building (integer) ≤ 10,000

Visual Presentation:

Sample Solution:

Java Code:

import java.util.*;

public class Main {
    public static void main(String[] args) {
        // Creating a Scanner object for user input
        Scanner sc = new Scanner(System.in);

        // Array to store the heights of eight buildings
        int[] t = new int[8];

        // Prompting the user to input the heights of eight buildings
        System.out.println("Input the heights of eight buildings:");
        for (int i = 0; i < 8; i++) {
            t[i] = sc.nextInt();
        }

        // Sorting the array of building heights in ascending order
        Arrays.sort(t);

        // Displaying the heights of the top three buildings in descending order
        System.out.println("\nHeights of the top three buildings:");
        for (int i = 7; i >= 5; i--) {
            System.out.println(t[i]);
        }
    }
} 

Sample Output:

Input the heights of eight buildings:
 25 19 23 45 18 23 24 19

Heights of the top three buildings:
45
25
24

Flowchart:

For more Practice: Solve these Related Problems:

• Write a Java program to find the top three unique building heights from a list that may contain duplicates.
• Write a Java program to determine the top three building heights using a max heap for efficient retrieval.
• Write a Java program to identify the three largest building heights from an unsorted array without fully sorting it.
• Write a Java program to compute the top three building heights and also return their original indices in descending order.

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