Formatting - Revision history

Suhridk: /* Format String */

2011-09-05T17:08:25Z

Format String

2011-08-19T08:45:29Z

Format String

2011-08-19T08:35:34Z

2011-07-08T10:24:45Z

2011-07-08T10:23:05Z

2011-07-08T10:19:46Z

2011-07-08T10:04:16Z

2011-07-08T09:54:00Z

2011-07-08T09:52:20Z

2011-07-08T09:46:41Z

@@ Line 107: / Line 107: @@
 * The format() method is very strict about data types. It will not try to format float as int or int as float etc. A java.util.IllegalFormatConversionException will be thrown.
 * There is a whole bunch of runtime exceptions associated with string formating. All are subclasses of IllegalFormatException.
 e.g. IllegalFormatFlagsException, IllegalFormatPrecisionException etc. etc.
 [[Category:OCPJP]]

← Older revision		Revision as of 08:45, 19 August 2011
Line 105:		Line 105:

	* Finally the precision - a number prefix with a ".". This is to indicate the number of digits to print after a decimal point. This applies only to floats.		* Finally the precision - a number prefix with a ".". This is to indicate the number of digits to print after a decimal point. This applies only to floats.
		+
		+	* The format() method is very strict about data types. It will not try to format float as int or int as float etc. A java.util.IllegalFormatConversionException will be thrown.

	* There is a whole bunch of runtime exceptions associated with string formating. All are subclasses of IllegalFormatException.		* There is a whole bunch of runtime exceptions associated with string formating. All are subclasses of IllegalFormatException.

@@ Line 17: / Line 17: @@
 System.out.printf("The sum of %d and %d is %d", i, j, (i+j));
 == Format String ==
 * Syntax:

@@ Line 89: / Line 89: @@
 * Finally the precision -  a number prefix with a ".". This is to indicate the number of digits to print after a decimal point. This applies only to floats.
+* There is a whole bunch of runtime exceptions associated with string formating. All are subclasses of IllegalFormatException.
 [[Category:OCPJP]]

@@ Line 27: / Line 27: @@
 * Every argument must have a format string in the above syntax, or it wont be printed!
-Arguments within [] are optional. Only the conversion_char is mandatory. The following are the conversion chars:
+Arguments within [] are optional. Only the conversion_char is mandatory. The following are the basic conversion chars:
 * b - boolean
@@ Line 34: / Line 34: @@
 * f - floating point
 * s - string
 Optional arguments

← Older revision		Revision as of 10:19, 8 July 2011
Line 81:		Line 81:
	* Finally the precision - a number prefix with a ".". This is to indicate the number of digits to print after a decimal point. This applies only to floats.		* Finally the precision - a number prefix with a ".". This is to indicate the number of digits to print after a decimal point. This applies only to floats.

−	* Using wrong format strings - like precision for integers - will result in a runtime exception: java.util.IllegalFormatPrecisionException.


	[[Category:OCPJP]]		[[Category:OCPJP]]

← Older revision		Revision as of 10:04, 8 July 2011
Line 77:		Line 77:

	</syntaxhighlight>		</syntaxhighlight>
		+
		+
		+	* Finally the precision - a number prefix with a ".". This is to indicate the number of digits to print after a decimal point. This applies only to floats.
		+
		+	* Using wrong format strings - like precision for integers - will result in a runtime exception: java.util.IllegalFormatPrecisionException.
		+

	[[Category:OCPJP]]		[[Category:OCPJP]]

@@ Line 71: / Line 71: @@
 out.printf("%3d", 101231);
-//prints 101;
+//prints 101231.
 </syntaxhighlight>
 [[Category:OCPJP]]

@@ Line 61: / Line 61: @@
 out.printf("%+d , %+d", i, j);
 //prints: +11 , -22
 </syntaxhighlight>
 [[Category:OCPJP]]

@@ Line 57: / Line 57: @@
 <syntaxhighlight lang="java5">
+int i = 11;
 </syntaxhighlight>
 [[Category:OCPJP]]