Dfyjkt

I'm trying to let my code print numbers I put in output but using array method.

package pkg11;

import java.util.Scanner;

public class Main 

 public static void main(String args) 
 Scanner in = new Scanner(System.in);
 int x = 0;

 System.out.println("How many number do you want to put?");
 int b = in.nextInt();

 for (int z = 1; z <= b; z++) 
 System.out.println("Input your" + " " + z + " " + "number");
 x = in.nextInt();
 

 System.out.println();
 int a = new int[x];;

 for (int i = 0; i < a.length; i++) 
 System.out.println(a[i]);
 
 

The problem is when it's printing it only prints the last value, for example, I put that I want to put 3 numbers, the first was 1 the second was 2 the third was 3, it prints the third without putting the first 2.

Have a close look at the following code fragment of yours and try to spot the error:

for (int z = 1; z <= b ; z++) 
 System.out.println("Input your" +" " +z +" " +"number");
 x = in.nextInt();


// here you create the array
int a = new int [x];

If you didnt spot it: You create the array you want to save each integer in after you have read all values from the console. There is no way you can store the users input in the array, since it is not known at that time.

Then, what did you actually do?

You used the same variable x all the time x = in.nextInt();, overriding each input.

What can i do to solve the problem?

Scanner in = new Scanner(System.in);
int x = 0;

System.out.println("How many number do you want to put?");
int b = in.nextInt();

int a = new int[b];

for (int z = 0; z < b; z++) 
 System.out.println("Input your" + " " + (z + 1) + " " + "number");
 a[z] = in.nextInt();


for (int i = 0; i < a.length; i++) 
 System.out.println(a[i]);

First, declare int a = new int[b]; before you read the values and assign each input the the array with a[z] = in.nextInt();. Also, i modified your loop index a little bit to make things easier.

Ok, what else can i do?

Apart from the user entering non numbers, this code is a little bit more bullet-proof! If you are looking for even more, you can use in.nextLine() and Integer.valueOf() to prevent the user from entering strings instead of numbers.

Scanner in = new Scanner(System.in);

int amountOfNumers;
System.out.println("How many number do you want to put? Amount: ");

amountOfNumers = in.nextInt();
while (amountOfNumers < 1) 
 System.out.println("Please enter a number greater than one:");
 amountOfNumers = in.nextInt();


int numbers = new int[amountOfNumers];

for (int i = 0; i < amountOfNumers; i++) 
 System.out.println("Input your " + (i + 1) + " number: ");
 numbers[i] = in.nextInt();


System.out.println("Your numbers are:");
Arrays.stream(numbers).forEach(System.out::println);