翻转字符串
https://www.cnblogs.com/taich-flute/p/10070143.html
package changjian;
public class reverseString {
public static void main(String[] args) {
String s = "do something ";
System.out.println(reverseString(s));
}
/**
* 翻转字符串
* 调用函数
*/
public static String reverseString(String s) {
return new StringBuffer(s).reverse().toString();
}
}