How can I print out the int values from the array?

Question

The code below shows my progress, but I cannot print the numbers that were entered. I don't know where to put println("you entered the following numbers") in the loop so that it'll show up when the loop stops.

import java.util.Scanner;

public class aufgabe5 {
    public static void main(String[] args) {

        int x;
        Scanner input = new Scanner(System.in);
        System.out.println("How much numbers do you want to enter?");
        x = input.nextInt();
        int j = 1;
        Scanner scanner = new Scanner(System.in);
        int[] numbers = new int[x];
        for (int i = 0; i < numbers.length; i++) {
            System.out.println("Enter the " + j++ + ". number:");
            numbers[i] = scanner.nextInt();

        }
        System.out.println("You entered following numbers");
        System.out.println(x);
    }
}

possible duplicate of [What's the simplest way to print an array?](http://stackoverflow.com/questions/409784/whats-the-simplest-way-to-print-an-array) — BackSlash, Nov 12 '14 at 17:56
Just loop back from 0 to numbers.length on your array, calling System.out.println(x) each time. — NSimon, Nov 12 '14 at 17:59
hmm the problem is when a user enters for example 2 numbers 2 and 5...this 2 numbers will be saved in the numbers[i] array. i don't know how i can get acess tho this array... to print it out where the "sout "x" " is now — Saboteur, Nov 12 '14 at 18:01

Elliott Frisch · Accepted Answer · 2014-11-12T18:20:21.597

1

Change x like

System.out.println(x);

to Arrays.toString(int[]) like

System.out.println(Arrays.toString(numbers));

Edit

To print the array reversed,

String str = Arrays.toString(numbers).replace(", ", " ,");
str = str.substring(1, str.length() - 1);
System.out.println(new StringBuilder(str).reverse().insert(0, "[")
            .append("]"));

edited Nov 12 '14 at 18:20

answered Nov 12 '14 at 18:03

Elliott Frisch

198,278
20
158
249

is there also a code to print the arrays reveresed? – Saboteur Nov 12 '14 at 18:15
@Saboteur Not as easy as `Arrays.toString()` but edited. – Elliott Frisch Nov 12 '14 at 18:20

Bart Hofma · Answer 2 · 2014-11-12T18:48:55.627

0

Intialize the String before the loop, then keep adding the values to it. After the loop finishes you can print the whole thing.

String someVar="You entered following numbers: ";
for(int 1=0;i<array.length;i++)
{
    someVar=someVar+numbers[i]+",";
}
System.out.println(someVar);

edited Nov 12 '14 at 18:48

answered Nov 12 '14 at 18:09

Bart Hofma

644
5
19

Although the code seems pretty clear, it's good form to add a bit of explanatory text to an answer like this. – Caleb Nov 12 '14 at 18:34

How can I print out the int values from the array?

2 Answers2