Question

Write a program that first gets a list of integers from the input and adds them to an array. The input begins with an integer indicating the number of integers that follow (Your program should work for any size of the array). Then, get the last value from the input, and output all integers less than or equal to that value by iterating through the array.

Ex: If the input is:

Enter the number of integers: 5

Enter integer 1: 50

Enter integer 2: 60

Enter integer 3: 140

Enter integer 4: 200

Enter integer 5: 75

Display integer less than or equal to: 100

the output is: The integers less than or equal to 100 are:

50

60

75

The 5 indicates that there are five integers in the list, namely 50, 60, 140, 200, and 75. The 100 indicates that the program should output all integers less than or equal to 100, so the program outputs 50, 60, and 75. Such functionality is common on sites like Amazon, where a user can filter results.

Please help me with this program in Java with comments.

Thank you

Answer 1

import java.util.Scanner;

public class LabProgram {

    public static void main(String[] args) {
        Scanner scnr = new Scanner(System.in);
        System.out.print("Enter the number of integers: ");
        int numValues = scnr.nextInt();
        int[] userValues = new int[numValues];
        for (int i = 0; i < numValues; i++) {
            System.out.print("Enter integer " + (i + 1) + ": ");
            userValues[i] = scnr.nextInt();
        }
        System.out.print("Display integer less than or equal to: ");
        int threshold = scnr.nextInt();
        System.out.println("The integers less than or equal to " + threshold + " are:");
        for (int i = 0; i < numValues; ++i) {
            if (userValues[i] <= threshold) {
                System.out.println(userValues[i]);
            }
        }
    }
}

Enter the number of integers: 5 Enter integer 1: 50 Enter integer 2: 60 Enter integer 3: 140 Enter integer 4: 200 Enter integer 5: 75 Display integer less than or equal to: 1991 The integers less than or equal to 100 are: 50