直接使用javaAPI中的StringBuffer或者StringBuilder(可变字符串)
巧妙方法一:
public class Main {
public static void main(String[] args) {
StringBuffer stbuf = new StringBuffer("asdf");
System.out.println(stbuf.reverse());
}
}
巧妙方法二:
public class Main {
public static void main(String[] args) {
StringBuilder stbul = new StringBuilder("asdf");
System.out.println(stbul.reverse());
}
}
运行结果:
fdsa