java Programming Glossary: str.charat
&& (AND) and || (OR) in IF statements http://stackoverflow.com/questions/1795808/and-and-or-in-if-statements you can write if str null str.isEmpty doSomethingWith str.charAt 0 or the other way round if str null str.isEmpty complainAboutUnusableString.. complainAboutUnusableString else doSomethingWith str.charAt 0 If we hadn't 'short circuits' in Java we'd receive a lot of..
What's the best way to check to see if a String represents an integer in Java? http://stackoverflow.com/questions/237159/whats-the-best-way-to-check-to-see-if-a-string-represents-an-integer-in-java int length str.length if length 0 return false int i 0 if str.charAt 0 ' ' if length 1 return false i 1 for i length i char c str.charAt.. 0 ' ' if length 1 return false i 1 for i length i char c str.charAt i if c ' ' c ' ' return false return true share improve this..
C# equivalent to Java's charAt()? http://stackoverflow.com/questions/3581741/c-sharp-equivalent-to-javas-charat
Generating all permutations of a given string http://stackoverflow.com/questions/4240080/generating-all-permutations-of-a-given-string prefix else for int i 0 i n i permutation prefix str.charAt i str.substring 0 i str.substring i 1 n via Introduction to..
read/write to Windows Registry using Java http://stackoverflow.com/questions/62289/read-write-to-windows-registry-using-java byte str.length 1 for int i 0 i str.length i result i byte str.charAt i result str.length 0 return result I was unable to find and..
Fastest way to iterate over all the chars in a String http://stackoverflow.com/questions/8894258/fastest-way-to-iterate-over-all-the-chars-in-a-string really long string for int i 0 n str.length i n i char c str.charAt i Or this char chars str.toCharArray for int i 0 n chars.length..
Reverse String Word by Word in Java http://stackoverflow.com/questions/9105277/reverse-string-word-by-word-in-java 1 String reverse temp for int i 0 i strLeng i temp str.charAt i if str.charAt i ' ' i strLeng for int j temp.length 1 j 0.. reverse temp for int i 0 i strLeng i temp str.charAt i if str.charAt i ' ' i strLeng for int j temp.length 1 j 0 j reverse temp.charAt.. int counter str.length 1 for int i str.length 1 i 0 i if str.charAt i ' ' i 0 if i 0 revStr.append str.substring i 1 end revStr.append..
Reversing a String - Recursion - Java http://stackoverflow.com/questions/9723912/reversing-a-string-recursion-java str str.length 1 return str return reverse str.substring 1 str.charAt 0 For instance when I reverse the word Hello I understand that.. be ello and then llo and then lo and o but when does the str.charAt 0 get called Won't the process end after it recursively finds.. The function takes the first character of a String str.charAt 0 puts it at the end and then calls itself reverse on the remainder..
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