例如:輸入 123,輸出321
import java.util.Scanner; public class C1 { public static void main(String[] args) { Scanner input = new Scanner(System.in); System.out.println("請入一個三位數:"); int a = input.nextInt(); int b = a / 100; int c = ( a - b * 100 ) / 10; int d = a - 100 * b - 10 * c; System.out.println("結果為:" + d + c + b); } }
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