Thread: JOption Output Message

I am very new to java programming and need help!

I am having difficulty outputting results from instructions shown:

Write a Java program using Java, that takes an input of a name in the form lastName,firstName and outputs the name in the form firstName lastName.
Both the input and output must use the JOptionPane.
I am using jGrasp. I think it has something to do with .indexOf(str) format to string the results of firstName lastName. Driving me crazy.... Please help!!!


This is what I have so far:



import javax.swing.JOptionPane;

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

String name;
String str1;
String str2;
int index;

str1 = "First Name";
str2 = "Last Name";

name = JOptionPane.showInputDialog(" Last name,First name: ");

String title = "Name Tags";
String answer = str1 + str2;

JOptionPane.showMessageDialog(null, answer, title, JOptionPane.INFORMATION_MESSAGE);



}
}

There are many ways to accomplish your requirements. I'd recommend writing down how you would accomplish this on a piece of paper. For instance: find comma, get text on either side of comma, etc...this is your algorithm. Then translate this into code. To do the translation into code, use the methods provided to you through the API. Methods such as substring, indexOf, split, etc...might be useful: String (Java Platform SE 6)

...and as mentioned above, please place your code between the tags Tjstretch mentioned, it helps format the code and makes it readable.

The reason it's outputting "First NameLast Name" is because you told it to with

String answer = str1 + str2;

Use the String method split(String regex)


let the regex be ","

Then do something like this

String[] array = name.split(",");

and, an array starts with index 0 so the last name will be at index 0 and first name at index 1.

You can access the first index by

array[0].