Simple string reverse algorith

gistfile1.java

package gl.sample.test;

public class StringReversSample {
	
	public static String reverseString(String src){
		if(src == null || src.isEmpty())
			return src;
		int strlen = src.length();
		char buffer[] = new char[src.length()];
		
		src.getChars(0, strlen, buffer, 0);
		int replaceIndx = strlen-1;
		char symblBuff;
		for(int indx=0; indx < replaceIndx; indx++,replaceIndx--){
			symblBuff = buffer[replaceIndx]; 
			buffer[replaceIndx] = buffer[indx];
			buffer[indx] = symblBuff;
		}		
		return new String(buffer);
	}
	
	public static void main(String[] args) {
		String testMe = "Hello world";
		String testResult = reverseString(testMe);
		System.out.println(testResult);
	}
}