close
public class Main {
public static void main(String args[]) throws IOException{
BufferedReader buf = new BufferedReader(new InputStreamReader(System.in));
System.out.print("請輸入字串:");
String text = buf.readLine();//輸入字串
String s = new StringBuffer(text).reverse().toString();//http://mis.hwai.edu.tw/~kevin/MISProject/JAVAProject/chapter5/c5-2.htm
System.out.println(s);
}
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