Java Language Tutorial => Reversing Strings

Download Java Language (PDF)

Fastest Entity Framework Extensions

Example

There are a couple ways you can reverse a string to make it backwards.

StringBuilder/StringBuffer:

 String code = "code";
 System.out.println(code);

 StringBuilder sb = new StringBuilder(code); 
 code = sb.reverse().toString();

 System.out.println(code);

Char array:

String code = "code";
System.out.println(code);

char[] array = code.toCharArray();
for (int index = 0, mirroredIndex = array.length - 1; index < mirroredIndex; index++, mirroredIndex--) {
    char temp = array[index];
    array[index] = array[mirroredIndex];
    array[mirroredIndex] = temp;
}

// print reversed
System.out.println(new String(array));

PDF - Download Java Language for free

Previous Next

Get monthly updates about new articles, cheatsheets, and tricks.