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Java Java Basics Getting Started with Java IO

Siddhant Dahiya
Siddhant Dahiya
156 Points
Posted by Siddhant Dahiya
Siddhant Dahiya
156 Points

Getting started with java challenge 3

im not sure how to do it, I have tried several times! - Print out to the screen using the printf method on console, "Firstname:" and the users first name! Ensure you have put the string formatter %s

IO.java 
// I have imported java.io.Console for you.  It is a variable called console.
String firstName = console.readLine("What is your name?   ");



String lastName = console.readLine("What is your name? ");

console.printf(  );
Stephen Little
Stephen Little
8,312 Points
Stephen Little
Stephen Little
8,312 Points

Not sure what your trying to do here, I have not yet started the java course but... if your trying to print out the fist and last name should they not be in your printf() fuction? something like

console.printf(firstName . lastName);

just guessing here with out seeing what your challenge is...

Hope I helped in some small way ;)

Stephen

Jonathan Petersen
Jonathan Petersen
45,721 Points

Hey Stephen you don't normally use printf like that, if you wanted to print without formatting you could use 

System.out.prinltn(firstName);

Also you don't concatenate string in Java with a period , you use + operator. This is different than some languages such as PHP. BTW, if you are going to be doing a lot of concatenation you should use Stringbuilder. I know it does not matter now, but that is something to keep in the back of your mind as you begin learning java.

The code you posted would result in a runtime uncompilable source code exception.

1 Answer

Jonathan Petersen
Jonathan Petersen
45,721 Points

Hey I think you are supposed to print the first name to the console, then the last name.

Here is how you would print the string.

console.printf("First Name: %s", firstName);

The %s is the format specifier, in this case it means a string. The second argument is the string that should be printed in place of the format specifier.

Next you will need to make the necessary changes to output the last name.

Siddhant Dahiya
Siddhant Dahiya
156 Points
Siddhant Dahiya
Siddhant Dahiya
156 Points

Thank to you so much jonathan :) it worked