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Java Java Basics Using your New Tools Multiple Format Strings

Posted by Raluca Voicu
Raluca Voicu
505 Points

Noun and Adj - please help me. I ain't got no clue why the code isn't working. Thank you, colleagues!

Noun and Adj - please help me. I ain't got no clue why the code isn't working. Thank you, colleagues! Have a great time learning how to code! :)

Multiple.java 
// I've imported java.io.Console for you.  It is stored in a variable called console for you.

String name = console.readLine("It's smart coding in Java");
String pastTenseVerb = console.readLine("Grammar");

console.printf(" %s really %s this coding exercise.");

/* 
String noun= "It's smart coding in Java"; 
String adj= "Grammar";

Imma stick to my "noun" and "adj" called so :D
*/

2 Answers

saykin
saykin
9,835 Points
saykin
saykin
9,835 Points

Hi Raluca!

When using printf with %s in the text/format, you need to include a String variable.

In this example

public void example() {
    String myFirstName = "Raluca";
    console.printf("Hi, my name is %s. Nice to meet you!", myFirstName);
}

Output: "Hi, my name is Raluca. Nice to meet you!"

Notice I have added a %s inside the double quotations of the printf. The Java compiler now expects me to add a String variable as an argument after the double quotations, in this case firstName (or whatever other String variable you might choose).

The syntax for printf is 

printf(format, arguments);

Format is any String (Either from a variable or in double quotations) and arguments are variables that the Java compiler expects if you have added a %s. Also notice the comma (,) following format in printf() as it's used to separate the two.

EDIT: If you have several %s in your format text, you can add more arguments by separating them with commas

console.printf("format %s %s", argumentOne, argumentTwo);
Raluca Voicu
Raluca Voicu
505 Points
Raluca Voicu
Raluca Voicu
505 Points

Hello and thank you very much for your detailed answer, saykin! :) It's so cool when I get this kind of help. I really appreciate it and wish you all the best! Have a great day!