Question

Which of the following statements does not contain an error?

I. Scanner in = new Scanner(System.in);
II. System.out.print("Please enter your name (first last): ");
III. String firstName = in.Next();

Answer 1

Depends are we looking for syntax errors, or program functionality?

Answer 2

Try to run the code if you have no idea, it's usually the best way to find out.

Answer 3

Well off the bat in.Next(); will throw an error, the 'N' should be lower-case.

Answer 4

When you do:
```
Scanner in = new Scanner(System.in);

```
Using the 'in' object, you can get user input to the program.
So doing
```
System.out.println("User, enter a string.");
String userInput = in.nextLine();
System.out.println(userInput + " is what the user typed into the program.");
```
Putting (nextLine()) after in. will allow the user to save what they type into the console to a String in the program.

Answer 5

why can in.next not start with a capital N?

Answer 6

as @Algorithmic said, the (next()) method works for user input as well.

Java is a case-sensitive language, meaning that you have to get the capitals all in the right spots for it to work. Though it isn't as intimidating as you might think -- there is a method to the madness.. calling a method like .next() or .nextLine(), you can see that the first character is always lower-case in a method, and the first letter of every word after is uppercase... more methods for example:
in.nextDouble();
in.nextInt();
in.nextByte();
in.nextShort();

.setToolTipText("This is a longer method for example");

Answer 7

@woodrow73 refresh my memory methods are "forbidden" from starting with a capitalized letter, that naming convention is reserved for classes, correct?

Answer 8

@Algorithmic right "forbidden". You have it right-- methods don't start with a capital letter, and every word in a class starts with an upper case letter.

Though nothing is stopping someone from breaking this 'rule' lol.

Answer 9

thank you guys :)

Answer 10

yw

Answer 11

You are welcome, sorry, I hijacked your thread a tad bit.