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catalin stoican
Courses Plus Student 798 Pointswhat is rong with this??? please, I'm blocked to thys step I don't understand
// I have setup a java.io.Console object for you named console String firstName="Cata"; console.printf("%s\n is learning Java",firstName); javac Introductions.java java Introductions
// I have setup a java.io.Console object for you named console
String firstName="Cata";
console.printf("%s\n is learning Java",firstName);
javac Introductions.java
javaIntroductions
after i put the semycolon look what is the error
JavaTester.java:75: error: cannot find symbol javac Introductions;java ^ symbol: class javac location: class JavaTester JavaTester.java:75: error: cannot find symbol javac Introductions;java ^ symbol: class java location: class JavaTester JavaTester.java:76: error: cannot find symbol java;Introductions ^ symbol: class Introductions location: class JavaTester
Note: JavaTester.java uses or overrides a deprecated API. Note: Recompile with -Xlint:deprecation for details. 3 errors
5 Answers
Ryan Ruscett
23,309 PointsCall printf on the console object to print something.
String firstName = "Ryan";
console.printf("%s can code in Java!", firstName);
printf is a method on the console object. So we use . notation to call it. Than, in the printf method. It takes parameters. These parameters consist of:
- a string
- The substitutions
Substitutions most cases are %s (string) or %d (integer). Since our name is a string. We use the %s. Than, the second parameter consist of the variables to substitute %s or %d for. In this instance it's just one. firstName. So we call printf from the console obj and pass it a string with a substitution of type string identified by %s and the second parameter is the variable to put into %s, which is our name.
Does that make sense?
Ryan Ruscett
23,309 PointsHey,
First thing is first. You are using the wrong string inside your printf. It's not "%s\n is learning Java" It's "%s can code in Java!". Secondly, you don't need a "\n". That's a new line character. You don't want it to print a single sentence on two lines.
Also
javac Introductions;java
You only use ; when compiling more than 1 file at a time.
test.java ; test1.java ; test2.java
Not
test;java.
String firstName = "Ryan";
console.printf("%s can code in Java!", firstName);
Does that answer your question? If not let me know and I can try another way.
catalin stoican
Courses Plus Student 798 Pointsfirst thank to helping me,it's about 4 hours from when i try to pass away but i can not do it. Yeah i know was wrong that \n it's for more phrases. i've changed but nothig go ok :( i'm lossing me at javac.introd........ from there i recive the error
Ryan Ruscett
23,309 PointsAre you trying to pass the challenge or build it on your own development environment?
catalin stoican
Courses Plus Student 798 PointsI'm trying to pass the challenge, I'm new to this world.... so how I can call the printf method on the console object and make it write out "<my name> can code in Java!" ??
catalin stoican
Courses Plus Student 798 Pointssorry boys for my bad english =))) but even if my english is bad i recive support and that's important!!!
Tommy Choe
38,156 PointsOther than your spelling? =D
Ryan Ruscett
23,309 Pointsno doubt