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Java Java Basics Getting Started with Java Strings and Variables

Jocelyn Gan
Jocelyn Gan
1,481 Points
Posted by Jocelyn Gan
Jocelyn Gan
1,481 Points

Using both printIn and printf in one file

the code below cant run, please help me to detect the error. thx

import java.io.Console;

public class Introductions {

public static void main(String[] args) {
    Console console = System.console();

    // Welcome to the Introductions program!  Your code goes below here
  String firstName = "Jojo";
  String surName = "ABC";
  console.printf("I'm %s.\n",firstName);
  console.printf("%s is learning Java.\n",firstName);
  System.out.printIn("My surname is "+surName+" haha");

} }

Aaron Kaye
Aaron Kaye
10,948 Points
Aaron Kaye
Aaron Kaye
10,948 Points

I think you have the classic L vs I issue. System.out.printIn("My surname is "+surName+" haha"); looks like an I instead of a lower case L

Jocelyn Gan
Jocelyn Gan
1,481 Points
Jocelyn Gan
Jocelyn Gan
1,481 Points

oh i see... thanks Aaron Kaye now only i notice.. =]

1 Answer

Dustin Lanphear
Dustin Lanphear
317 Points
Dustin Lanphear
Dustin Lanphear
317 Points

String.out.println I think of as "print line" because it forces a carriage return after each out statement. Where as printf is "print format" where you explicitly tell it to carriage return or not but also defines a specific "contract" on compilation that the values you are passing it will be of the correct type and look as you expect during runtime.