Answer to Question #318801 in Java | JSP | JSF for Wolf1442

Question

Write a program that reads in a set of positive integers and outputs how many times a particular number appears in the list. You may assume that the data set has most 7 numbers

The numbers must be output in increasing order for example:

15​40​28​62​62​15​28

Answer 1

     
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Scanner;
import java.util.Set;

public class Main {
        
    public static void main(String[] args) {

        System.out.println("Enter the list:"); 
        Scanner scanner = new Scanner(System.in);
        List<Integer> _inputs = new ArrayList<>();;
        for(int i=0; i<7; i++){ 
               _inputs.add(Math.abs(Integer.parseInt(scanner.nextLine())));
        }
    
        scanner.close();
        
        Set<Integer> uniqueSet = new HashSet<Integer>(_inputs);
        for (Integer temp : uniqueSet) {
                System.out.println(temp + ": " + Collections.frequency(_inputs, temp));
        }

    }
}