user input array

[localhost]

hello folks! new to java, little help will be much appreciated. This code should simply echo what the user input (array).

import java.util.*;
public class ScanArray {

    public static void main(String[] args) {
        System.out.println("Enter Value");
        Scanner scanner = new Scanner (System.in);
        int[] num = new int [5];
            for (int i = 0; i < num.length; i++)
            {
                num[i]=scanner.nextInt();
            }
                System.out.println("You have Entered : " + num[i]);
    }

}

[user0]

You have to move the last println statement inside the for loop. This is because the scope of the int variable i is inside the loop. Try the below code:

import java.util.*;
public class ScanArray {

    public static void main(String[] args) {
        Scanner scanner = new Scanner (System.in);
        int[] num = new int [5];
            for (int i = 0; i < num.length; i++)
            {
                System.out.print("Enter Value " + (i+1) + ": ");
                num[i] = scanner.nextInt();
                System.out.println("You have Entered : " + num[i]);
            }
                
    }

}

[user0]

You can also echo the numbers after you have input all the numbers. You can use a for each loop as follows. This will echo all the numbers after user input is complete.

import java.util.*;
public class ScanArray {

    public static void main(String[] args) {
        Scanner scanner = new Scanner (System.in);
        int[] num = new int [5];
            for (int i = 0; i < num.length; i++)
            {
                System.out.print("Enter Value " + (i+1) + ": ");
                num[i] = scanner.nextInt();
            }
            
            for(int n: num)	
            {
            	System.out.println("You have entered: " + n);
            }
                
    }

}

[localhost]

thanks for you help.. btw, how do you echo input value in one line?
Output
Enter Value 1: 11
Enter Value 2: 22
Enter Value 3: 33
Enter Value 4: 44
Enter Value 5: 55
You have entered: 11
You have entered: 22
You have entered: 33
You have entered: 44
You have entered: 55
BUILD SUCCESSFUL (total time: 10 seconds)

Like this:

You have entered: 11 22 33 44 55

[user0]

If you want it in one line you need to break the last System.out.println statement into two System.out.print statements as follows:

import java.util.*;
public class ScanArray {

    public static void main(String[] args) {
        Scanner scanner = new Scanner (System.in);
        int[] num = new int [5];
            for (int i = 0; i < num.length; i++)
            {
                System.out.print("Enter Value " + (i+1) + ": ");
                num[i] = scanner.nextInt();
            }
            
            System.out.print("You have entered: ");
            
            for(int n: num)	
            {
            	System.out.print(n + " ");
            }
                
    }

}

[localhost]

awesome! thanks