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Java Java Basics Getting Started with Java IO

Posted by Bryce Hunter
Bryce Hunter
1,186 Points

Using the printf method, display a message that says, "First name: ", followed by the first name that the user has enter

I keep getting a message that says "Did you forget to pass the 'firstName' parameter to the printf function?" I've been stuck on this for two days. Can someone help?

IO.java 
// I have imported java.io.Console for you.  It is a variable called console.
String firstName = ("Bryce");
  console.readLine("%s, firstName");
String lastName = ("Hunter");
  console.readLine("%s, lastName");
console.printf("First name: %s ,firstName");

3 Answers

Emil Rais
Emil Rais
26,873 Points
Emil Rais
Emil Rais
26,873 Points

It is only String-literals that are enclosed in quotes - not variables.

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

Should actually be:

console.printf("First name: %s", firstName);
Bryce Hunter
Bryce Hunter
1,186 Points

I'm still getting the same error message

Emil Rais
Emil Rais
26,873 Points
Emil Rais
Emil Rais
26,873 Points

The output of your calls to console.readLine() should be stored in the variables. Rather than:

String firstName = "Bryce";

You should do:

String firstName = console.readLine();

Does that help you?

Jakob Wozniak
Jakob Wozniak
17,896 Points
Jakob Wozniak
Jakob Wozniak
17,896 Points

As Emil said, you'll want to make sure your firstName equals whatever someone enters in console.readLine:

String firstName = console.readLine("First name:  ");

This means that whatever someone enters into the readLine function will be stored in firstName. This is just a shorter/condensed way of writing:

String firstName = "Bryce";
firstName = console.readLine("First name:  ");

// in this code, 'Bryce' will be immediately overwritten by what the user enters in the second line ;)

I hope this helps!

Ted Barlow
Ted Barlow
6,440 Points
Ted Barlow
Ted Barlow
6,440 Points

thats tha way it should go, and dont forget to close the first two line with \n

// I have imported java.io.Console for you. It is a variable called console. String firstName = console.readLine("Renald\n "); String lastName = console.readLine("Toussaint\n"); console.printf("First name: %s", firstName);