Implement a function reverse which reverses a string. CC 150 - Arrays and Strings

ReverseString.java

package CC150.ArraysAndString;

/**
 * Implement a function reverse which reverse a null-terminated string (null-terminated only works for C/C++)
 */
public class ReverseString {
	public static void main(String args[]) {
		System.out.println(reverse("hello"));
	}
	
	public static String reverse(String str) {
		StringBuffer sb = new StringBuffer();
		for (int i= str.length()-1; i>=0; i--) {
			char value = str.charAt(i);
			sb.append(value);
		}
		return sb.toString();
	}
}