java-String字符串反转练习

package String;

/**
 * @author jee
 * @version 1.0
 */
public class StringReverse01 {
    public static void main(String[] args) {
        String str ="abcdefghijklmnopqrst";
        System.out.println("字符串反转前");
        System.out.println(str);
//
        System.out.println("字符串反转后:");
        String reverse = StringReverse01.Reverse(str, 1, 4);
        System.out.println(reverse.toString());


    }
    public static String Reverse(String str,int start,int end)
    {
        char [] chars = str.toCharArray();
        char temp = 0;
        for (int i = start,j=end; i <j ; i++,j--) {
            temp =chars [i];
            chars[i]=chars[j];
            chars[j]=temp;
        }
     return new String(chars);
    }
}