/*Given a string, take the last char and return a new string with the last char added at the front and back, so "cat" yields "tcatt". The original string will be length 1 or more.

* backAround("cat") → "tcatt"

* backAround("Hello") → "oHelloo"

* backAround("a") → "aaa"

*/

public class BackAround {

//Class for testing and setting dummy values

public static void main( String [] args ) {

//Output tests

System.out.println( backAround( "Hello" ) );

}

public static String backAround( String str ) {

int length = str.length();

char lastLetter = str.charAt( length - 1 );

return lastLetter + str + lastLetter;

}

}