Java: Accepts six numbers as input and sorts them in descending order

Last update on May 13 2025 13:00:08 (UTC/GMT +8 hours)

Sort Six Numbers in Descending Order

Write a Java program that accepts six numbers as input and sorts them in descending order.

Input:

Input consists of six numbers n1, n2, n3, n4, n5, n6 (-100000 ≤ n1, n2, n3, n4, n5, n6 ≤ 100000). The six numbers are separated by a space.

Visual Presentation:

Sample Solution:

Java Code:

// Importing necessary Java libraries for input and exception handling
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.BufferedReader;

// Main class named "Main"
public class Main {
    // Main method to execute the program
    public static void main(String[] args) throws IOException {
        // Creating a BufferedReader object for efficient reading of input
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

        // Prompting the user to input six integers
        System.out.println("Input six integers:");

        // Reading the input line and splitting it into an array of strings
        String[] input = br.readLine().split(" ", 6);

        // Declaring an array to store the six integers
        int[] data = new int[6];

        // Parsing each string in the input array and storing it as an integer in the data array
        for (int i = 0; i < 6; i++) {
            data[i] = Integer.parseInt(input[i]);
        }

        // Sorting the integers in descending order using the Bubble Sort algorithm
        for (int j = 0; j < 5; j++) {
            for (int i = 5; i > j; i--) {
                if (data[i - 1] < data[i]) {
                    // Swapping elements if they are in the wrong order
                    int swp = data[i];
                    data[i] = data[i - 1];
                    data[i - 1] = swp;
                }
            }
        }

        // Creating a StringBuilder to build the output string efficiently
        StringBuilder sb = new StringBuilder();

        // Appending each sorted integer followed by a space to the StringBuilder
        for (int i : data) {
            sb.append(i);
            sb.append(" ");
        }

        // Displaying the result after sorting the integers
        System.out.println("After sorting the said integers:");

        // Printing the final output string after removing the trailing space
        System.out.println(sb.substring(0, sb.length() - 1));
    }
} 

Sample Output:

Input six integers:
 4 6 8 2 7 9
After sorting the said integers:
9 8 7 6 4 2

Flowchart:

For more Practice: Solve these Related Problems:

• Write a Java program to sort six numbers in ascending order using a recursive sorting algorithm.
• Write a Java program to sort six numbers in descending order without using any built-in sorting functions.
• Write a Java program to sort six numbers in descending order and then reverse the sorted list.
• Write a Java program to sort six numbers in descending order using bubble sort while counting the number of swaps.

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• Java Basic Part-II Programming Exercises Home ↩
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