If you have a look in the errata page, I’ve given some code that uses Scanner. Back in the pre Java 1.5 days, Scanner didn’t exist, and it was a bit of a pain to read from the keyboard.

Cheers
Michael

I am going along with your tutorials and I get to the part when you write out

System.out.println(“Please enter an int”);

I do it for all of them and it compiles fine but it does not print out the statements. Can you help?

I went crazy!
Hope it’s the last of my questions

You honestly ROCK!

Thanks again.

Make sure that the file is called Keyboard.java, with a capital K. I think when I uploaded the file wordpress converted the filename to all lower case. It must have a capital K for Keyboard.

Hope that helps
Michael

Hi Michael,

Great tutorials. I’ve done great so far, until no.4.
For some reason when i try to compile (c:\java>javac *.java) i get this:

“Keyboard.java:19: class Keyboard is public, should be declared in a file named Keyboard.java
public abstract class Keyboard {
^
1 error”

What went wrong?… i’ve looked at the file, and gone over everything more than twice, but didn’t know what to do.

Please help me, i’m stuck for now.

This is what i wrote in notepad++:

public class KeyboardTest {

public static void main(String[] args) {

int testInt;
double testDouble;
char testChar;
String testString;

System.out.println(“Please enter a int:”);
testInt = Keyboard.readInt();

System.out.println(“Please enter a double:”);
testDouble = Keyboard.readDouble();

System.out.println(“Please enter a char:”);
testChar = Keyboard.readChar();

System.out.println(“Please enter a string:”);
testString = Keyboard.readLine();

System.out.println(“The int you entered was” + testInt);
System.out.println(“The double you entered was” + testDouble);
System.out.println(“The char you entered was” + testChar);
System.out.println(“The string you entered was” + testString);

}

}

(I used the “Keyboard.java” file you gave)

javadoc Keyboard.java

At the command prompt.

Cheers
Michael