Here are some good resources for finding out how to do something
in Java:
Fred Swartz's Web-site : http://www.leepoint.net/notes-java/index.html
Real's How-to-code : http://www.rgagnon.com/howto.html
Fluffy Cat (??!!) http://www.fluffycat.com/java/
Task needed |
How to Code it |
Count the number of letters in a String. |
str.length( ) |
Get the first letter of a string. |
str.substring(0,1) |
Get the last letter of a string. |
str.substring(str.length()-1,str.length()) |
Find out whether "FIS" appears somewhere in a String |
if ( str.contains("FIS") ) |
Change ALL LETTERS in a String to capitals. |
str = str.toUpperCase( ); |
Count the number of times the letter 'e' appears in a String |
int count = 0; |
Remove the 3rd letter from a String |
str = str.substring(0,3) + str.substring(4); |
Remove all the 'e' characters from a String |
int count = 0; |
Find the first blank space in a String, and then get the first WORD from the String |
int b = str.indexOf( " "); String fw = str.substring(0,b); |
Search for a comma ',' in a name and exchange the first and last names, like this: "Robinson, Jackie" --> "Jackie Robinson" |
int c = str.indexOf(","); if (c >= 0) |
Replace one letter with a different one. |
find out how .replace works by reading http://mindprod.com/jgloss/gotchas.html#REPLACE |
As you find other "how-to" solutions, it is useful to keep a list of notes in a notebook or on a USB stick.