Programming Forums > Application Development > Java

Eric the Red · Jan 10th, 2007, 7:52 PM

String str = new String( "Java is object oriented.");
System.out.printf("|%s|%n", str);

The above code will work in "EditPlus" (which is what my college uses). While, it won't work in "Eclipse".

What would be the reason behind this?

Error:

(Toggle Plain Text)

The method printf(String, Object[]) in the type PrintStream is not applicable for the arguments (String, String)

Booooze · Jan 10th, 2007, 9:05 PM

Is this all the code, and are you sure there are no differences? That's the first step.

Then, the only thing I could think of is to check to see if your compiler by passes certain things - check your settings for that, but that's a long shot (I'm Guessing). Look here for the docs page and compare again.

http://java.sun.com/j2se/1.5.0/docs/...ang.Object...)

Sorry I can't help ya more bud.

titaniumdecoy · Jan 10th, 2007, 9:23 PM

Baffling.

The printf function of PrintStream (of which System.out is an instance) is new to Java 5. Most likely you need to update the version of Java your computer is running.

According to the documentation, your code is incorrect; the second argument to printf should be an Object array containing the "arguments referenced by the format specifiers of the format string." However, when I run your code in Eclipse on my computer, it works fine.

Booooze · Jan 11th, 2007, 6:56 PM

Quote:

Originally Posted by titaniumdecoy

Baffling.

The printf function of PrintStream (of which System.out is an instance) is new to Java 5. Most likely you need to update the version of Java your computer is running.

According to the documentation, your code is incorrect; the second argument to printf should be an Object array containing the "arguments referenced by the format specifiers of the format string." However, when I run your code in Eclipse on my computer, it works fine.

Oops. That's the other thing I meant to mention.

Eric the Red · Jan 11th, 2007, 9:19 PM

First off, Thank you for you help.

I've tried installing the newest Java. However, it still doesn't work.

At least now I know that its not eclipse doing this. Any other ideas?

mrynit · Jan 11th, 2007, 10:32 PM

try running your code thru command line

(Toggle Plain Text)

C:\>javac Test.java
C:\>java Test

if javac cannot be found then set your system path to C:\Program Files\Java\jdk1.5.0_02\bin or what version you have.

im guessing Eclipse is still pointing to the older version of java. try checking to see that it is using the new javac.

btw i dont know much about java.

Eric the Red · Jan 12th, 2007, 12:12 AM

I've ran my code through command line... I placed my 'String1.java' file to the root of the c drive so that.

(Toggle Plain Text)

javac C:\String1.java

Actually compiles the code without errors. However, in Eclipse I looked through the settings and found that the 'java build path' seems to be pointing to the right location. So basically, Eclipse still won't compile the code.

WOW.. I'm 100% confused.

mrynit · Jan 12th, 2007, 11:26 AM

well you know its Eclipse not anything else. double check paths and settings.

try NetBeans?

Arevos · Jan 12th, 2007, 11:46 AM

IIRC, Eclipse defaults to Java 1.4 compatibility. In other words, even if you have Java 5 on your machine, by default it will compile your code as if it were for 1.4. This is why printf is not working for you.

Here is a page a quick google search pulled up. Assuming Java 5 is the only version of Java installed on your machine, then this step is the only important one:

Quote:

- Set the Eclipse>Preferences>Java>Compiler level to 5.0

If you set that option, your code should compile.

titaniumdecoy · Jan 12th, 2007, 3:20 PM

As I mentioned previously, according to Sun's documentation, your code is incorrect. As such, it should not be a surprise that it does not compile in some situations.

Jan 10th, 2007, 7:52 PM	#1
Eric the Red Hobbyist Programmer Join Date: Feb 2006 Posts: 214 Rep Power: 0	printf Problem (Toggle Plain Text) String str = new String( "Java is object oriented."); System.out.printf("\|%s\|%n", str); String str = new String( "Java is object oriented."); System.out.printf("\|%s\|%n", str); The above code will work in "EditPlus" (which is what my college uses). While, it won't work in "Eclipse". What would be the reason behind this? Error: (Toggle Plain Text) The method printf(String, Object[]) in the type PrintStream is not applicable for the arguments (String, String) The method printf(String, Object[]) in the type PrintStream is not applicable for the arguments (String, String) __________________ Death smiles at us all. All a man can do is smile back. Last edited by Eric the Red; Jan 10th, 2007 at 8:02 PM.

Jan 11th, 2007, 9:19 PM	#5
Eric the Red Hobbyist Programmer Join Date: Feb 2006 Posts: 214 Rep Power: 0	First off, Thank you for you help. I've tried installing the newest Java. However, it still doesn't work. At least now I know that its not eclipse doing this. Any other ideas? __________________ Death smiles at us all. All a man can do is smile back.

Jan 11th, 2007, 10:32 PM	#6
mrynit Hobbyist Programmer Join Date: Mar 2006 Location: WA, USA Posts: 332 Rep Power: 3	try running your code thru command line (Toggle Plain Text) C:\>javac Test.java C:\>java Test C:\>javac Test.java C:\>java Test if javac cannot be found then set your system path to C:\Program Files\Java\jdk1.5.0_02\bin or what version you have. im guessing Eclipse is still pointing to the older version of java. try checking to see that it is using the new javac. btw i dont know much about java. __________________ i dont know much about programming but i try to help

Jan 12th, 2007, 12:12 AM	#7
Eric the Red Hobbyist Programmer Join Date: Feb 2006 Posts: 214 Rep Power: 0	I've ran my code through command line... I placed my 'String1.java' file to the root of the c drive so that. (Toggle Plain Text) javac C:\String1.java javac C:\String1.java Actually compiles the code without errors. However, in Eclipse I looked through the settings and found that the 'java build path' seems to be pointing to the right location. So basically, Eclipse still won't compile the code. WOW.. I'm 100% confused. __________________ Death smiles at us all. All a man can do is smile back.

Jan 12th, 2007, 11:26 AM	#8
mrynit Hobbyist Programmer Join Date: Mar 2006 Location: WA, USA Posts: 332 Rep Power: 3	well you know its Eclipse not anything else. double check paths and settings. try NetBeans? __________________ i dont know much about programming but i try to help

Jan 10th, 2007, 9:05 PM	#2
Booooze Expert Programmer Join Date: Mar 2006 Location: Igloo Posts: 710 Rep Power: 3	Is this all the code, and are you sure there are no differences? That's the first step. Then, the only thing I could think of is to check to see if your compiler by passes certain things - check your settings for that, but that's a long shot (I'm Guessing). Look here for the docs page and compare again. http://java.sun.com/j2se/1.5.0/docs/...ang.Object...) Sorry I can't help ya more bud.

Jan 10th, 2007, 9:23 PM	#3
titaniumdecoy Expert Programmer Join Date: Nov 2005 Posts: 856 Rep Power: 3	Baffling. The printf function of PrintStream (of which System.out is an instance) is new to Java 5. Most likely you need to update the version of Java your computer is running. According to the documentation, your code is incorrect; the second argument to printf should be an Object array containing the "arguments referenced by the format specifiers of the format string." However, when I run your code in Eclipse on my computer, it works fine.

Jan 12th, 2007, 3:20 PM	#10
titaniumdecoy Expert Programmer Join Date: Nov 2005 Posts: 856 Rep Power: 3	As I mentioned previously, according to Sun's documentation, your code is incorrect. As such, it should not be a surprise that it does not compile in some situations.

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Programming Forums > Application Development > Java

printf Problem