[Homework] Requesting User Input

[nKulo]

Hello all!

Brief background - College student. First course in programming. Trying to learn Java. We are using Eclipse for our IDE.

What this program is supposed to do: Have a user calculate a payroll by inputting information through a keyboard.

Name	Hours Worked This Week	Hourly Pay Rate
Paul Dickson	35	18.36
Mary Ann Ginsburg	40	21.40
David Cheong	40	12.00

Problem: When I prompt the user for information it errors on the second block of information. The first set works great. They enter: Paul Dickson [return], 35 [return], and 18.36 [return]. No problems. But for some reason when you try and enter on the next set: Mary Ann Ginsburg it errors.

import java.util.Scanner;
 
public class Payroll {
 
	/**
	 * @author	
	 * @purpose	
	 * @date	
	 */
 
	public static void main(String[] args)
	{
		Scanner keyboard = new Scanner(System.in);
		System.out.println("Please enter a name: ");
		String n1 = keyboard.nextLine();
		System.out.println("Now we will calculate weekly earnings for: " + n1);
		System.out.println("Please enter the amount of hours worked this week: ");
		int h1 = keyboard.nextInt();
		System.out.println("Thank you. Now please enter the current hourly pay rate: ");
		double pr1 = keyboard.nextDouble();
		System.out.println(n1 + " should be making $" + h1 * pr1 + " before deductions.");
 
 
		System.out.println();
		System.out.println("Please enter a name: ");
		String n3 = keyboard.nextLine();
		System.out.println("Now we will calculate weekly earnings for: " + n3);
		System.out.println("Please enter the amount of hours worked this week: ");
		int h2 = keyboard.nextInt();
		System.out.println("Thank you. Now please enter the current hourly pay rate: ");
		double pr2 = keyboard.nextDouble();
		System.out.println(n3 + " should be making $" + h2* pr2 + " before deductions.");
 
	}
}

I would like to thank anyone in advance for taking the time to look at this and offering help!

[pbrockway2]

it errors

Do you mean there's an exception? If so post the whole stack trace (the thing that is displayed when the exception occurs). The first thing is to establish when - on what statement - the exception occurred.

[The_pizzaguy]

I didnt get any errors wen I was running your code. But i saw a problem that in the second blok of code the name got skipped.
This is because you use keyboard.nextLine(); instead you should use keboard.next(); for normal behavoir to get a string.
the .nextLine behaviors diffrent than you want it to.

[nKulo]

I didnt get any errors wen I was running your code. But i saw a problem that in the second blok of code the name got skipped.
This is because you use keyboard.nextLine(); instead you should use keboard.next(); for normal behavoir to get a string.
the .nextLine behaviors diffrent than you want it to.

Thanks pizzaguy, that was the solution. Why wouldn't the nextLine method work though?

[Norm]

nextLine() reads the end of line character that was left in the Scanner class's buffer after the nextInt() method was used. That's a very common problem when using the Scanner class's methods when mixing calls to nextInt() or other next...() methods with calls to nextLine().

[nKulo]

nextLine() reads the end of line character that was left in the Scanner class's buffer after the nextInt() method was used. That's a very common problem when using the Scanner class's methods when mixing calls to nextInt() or other next...() methods with calls to nextLine().

Okay thank you for explaining!