How do I reverse the order of a string in java?

public static String reverseString(String s)

{

return new StringBuffer(s).reverse().toString();

}

or

void reverseString(String str)

{

for(int i = str.length()-1; i >= 0; i--)

System.out.print(str.charAt(i));

}

One approach would be to create a char array the same length as the String, and then fill every element with the characters in the String, starting with the last one and ending with the first one.