Super Junior
Mindless Behavior
What are you thoughts on boy bands?
Do you want to help me start one?
How to view the contents of a jar file.
Command
// From the cmd line jar -tvf fileName.jar
Example Output
C:\BrowserGUI\dist>jar -tvf BrowserGUI.jar
0 Sat Nov 26 21:46:28 PST 2011 META-INF/
106 Sat Nov 26 21:46:26 PST 2011 META-INF/MANIFEST.MF
39313 Sat Nov 26 21:46:26 PST 2011 GUIAboutTab.class
39952 Sat Nov 26 21:46:26 PST 2011 GUIFrame.class
45354 Sat Nov 26 21:46:26 PST 2011 GUITabbedPane.class
5244 Sat Nov 26 21:46:26 PST 2011 GUImain.class
691 Sat Nov 26 21:46:26 PST 2011 NewJFrame$1.class
509 Sat Nov 26 21:46:26 PST 2011 NewJFrame$2.class
15458 Sat Nov 26 21:46:26 PST 2011 NewJFrame.class
Check out the Java Package Tutorial for more infomation.
REM filename: openAndORCreateFileTXT.bat rem\ >> file.txt && file.txt |
The following will open a existing file named file.txt. However, it if doesn’t exist then it will create it for you then open it. This is very useful.
“rem\” Let’s you return a empty character.
“>> file.txt” appends the returned value on the left hand side, which in this case is nothing.
“&& file.txt” once the left hand operation is done, then open the file ( file.txt).
Groovy Code
/** * @function printAllMethods * @purpose Prints an objects class name and then list the associated class functions. */ // Filename: printAllMethodsExample.groovy void printAllMethods( obj ){ if( !obj ){ println( "Object is null\r\n" ); return; } if( !obj.metaClass && obj.getClass() ){ printAllMethods( obj.getClass() ); return; } def str = "class ${obj.getClass().name} functions:\r\n"; obj.metaClass.methods.name.unique().each{ str += it+"(); "; } println "${str}\r\n"; } |
Example Code
// Filename: printAllMethodsExample.groovy void printAllMethods( obj ){ if( !obj ){ println( "Object is null\r\n" ); return; } if( !obj.metaClass && obj.getClass() ){ printAllMethods( obj.getClass() ); return; } def str = "class ${obj.getClass().name} functions:\r\n"; obj.metaClass.methods.name.unique().each{ str += it+"(); "; } println "${str}\r\n"; } printAllMethods( null ); printAllMethods( 1 ); printAllMethods( "string" ); printAllMethods( [1:1] ); |
Output
Object is null class java.lang.Integer functions: equals(); getClass(); hashCode(); notify(); notifyAll(); toString(); wait(); byteValue(); doubleValue(); floatValue(); intValue(); longValue(); shortValue(); bitCount(); compare(); compareTo(); decode(); getInteger(); highestOneBit(); lowestOneBit(); numberOfLeadingZeros(); numberOfTrailingZeros(); parseInt(); reverse(); reverseBytes(); rotateLeft(); rotateRight(); signum(); toBinaryString(); toHexString(); toOctalString(); valueOf(); class java.lang.String functions: equals(); getClass(); hashCode(); notify(); notifyAll(); toString(); wait(); charAt(); codePointAt(); codePointBefore(); codePointCount(); compareTo(); compareToIgnoreCase(); concat(); contains(); contentEquals(); copyValueOf(); endsWith(); equalsIgnoreCase(); format(); getBytes(); getChars(); indexOf(); intern(); isEmpty(); lastIndexOf(); length(); matches(); offsetByCodePoints(); regionMatches(); replace(); replaceAll(); replaceFirst(); split(); startsWith(); subSequence(); substring(); toCharArray(); toLowerCase(); toUpperCase(); trim(); valueOf(); class java.lang.Class functions: equals(); getClass(); hashCode(); notify(); notifyAll(); toString(); wait(); clear(); containsKey(); containsValue(); entrySet(); get(); isEmpty(); keySet(); put(); putAll(); remove(); size(); values(); clone(); |