plz help with JAVA String

thtr2k · 11-02-2007, 08:37 PM

i want to truncate some strings in JAVA to a certain length. How do i make use of JAVA API for this problem?

Code:

eg:
  if string length is more than 4 characters i just want to get the last 4.
   input: abcdaasd
   
   output: aasd

thank you.

ghostdog74 · 11-02-2007, 08:56 PM

substring perhaps? plus a combination of charAt.
see here for example

devn · 11-03-2007, 12:15 AM

Hi,
I guess this one should help:

Code:

String test = new String("teststring");
String test2 = new String("test");
String test3 = new String("timemachine32");
String test4 = new String("abc");

   if(test.length()>4)
   {
       System.out.println("test output: " + test.substring(test.length()-4));
   }

Compare the string lengths to get their individual outputs. I did for
variable test. Try for test2 and any other of your choice.

test4 and test2 should not yield anything when tested in if.

thtr2k · 11-03-2007, 01:04 AM

my code is like this

Code:

...
String aString = "myTestingString";
String newString ="";
...
if(aString.length()>4){
       newString = aString.substring((aString.length() - 4), aString.length());
...
} else {
...
}

System.out.println("new string: " + newString);
...

it works thanks guys.