Need Help for an Array.

[Muzafar Ali]

Hey guys,
i need help to set data in Array, in this program i set values for names from 1 upto 5 , actually i want that values to be entered by using scanner class then retrieved anytime.

import java.util.Scanner;
public class Example
{
	public static void main (String[] args)
	{
		Scanner input = new Scanner(System.in);
		
		String[] names = new String[] {"name1", "name2", "name3", "name4", "name5"};
		int[] nameNumbers = new int[]{1, 2, 3, 4, 5};
		int nameChoice;
		
		System.out.println("===================================");
		System.out.println("        NAMES COLLECTION");
		System.out.println("===================================");
		System.out.print(" NAME NUMBERS:  ");
		for(int length : nameNumbers)
			System.out.print(length+"  ");
		System.out.println("\n-----------------------------------");
		
		System.out.print("ENTER NAME NUMBER:  ");
		nameChoice=input.nextInt();
		System.out.println("\n\n\n\n");
		
		for (int i=0; i<5; i++)
		{
			if (nameNumbers[i]==nameChoice)
			{
				System.out.println("NAME:   "+names[i]);
			}
		}
	}
}

[Maneesh Godbole]

Did you check out the Scanner API docs? It has samples of how to use the Scanner class.

[Muzafar Ali]

Maneesh Godbole wrote:Did you check out the Scanner API docs? It has samples of how to use the Scanner class.

Thanks for reply,
i not checked that docs ever but i will check,
One question i think my problem was not about scanner you know.
i have used scanner class i can get input using Scanner with any data type
my question was
how to get input from scanner to set values in Array;
then retrieve them.

[Maneesh Godbole]

names[0]="Muzafar";
names[1]="Ali"

[Campbell Ritchie]

Why are you using the for loop to look for the number? You don't need a number array at all. You can enter a number, calculate the index, and display the name with only one array.

[Muzafar Ali]

Campbell Ritchie wrote:Why are you using the for loop to look for the number? You don't need a number array at all. You can enter a number, calculate the index, and display the name with only one array.

Thanks for you reply
i will try to do that.

[Michael Angstadt]

Muzafar Ali wrote:how to get input from scanner to set values in Array;
then retrieve them.

Use java.util.ArrayList. It's like an array, but it doesn't have a fixed size, so you can add as many Strings to it as you want

[Muzafar Ali]

Michael Angstadt wrote:

Muzafar Ali wrote:how to get input from scanner to set values in Array;
then retrieve them.

Use java.util.ArrayList. It's like an array, but it doesn't have a fixed size, so you can add as many Strings to it as you want

Thanks fo reply,
can you post a sample for that?

[Jon Kho]

private ArrayList<Customer> listCusts;

listCusts = new ArrayList();
listCusts.add("C1000", "Jim Barry", "4348 4001");
listCusts.add("C1001", "Jim Merry", "4348 4002");
and etc..

do use "www.google.com" or any other search engines because it has many examples on array list..

[Muzafar Ali]

Jon Kho wrote:

private ArrayList<Customer> listCusts;

listCusts = new ArrayList();
listCusts.add("C1000", "Jim Barry", "4348 4001");
listCusts.add("C1001", "Jim Merry", "4348 4002");
and etc..

do use "www.google.com" or any other search engines because it has many examples on array list..

Thanks for your answer,
i will try to find those by using search engine thanks for help friends.