import java.util.Scanner; class Exer1 { public static void main(String[] args) { Scanner scan = new Scanner (System.in); System.out.println("请输入星期值:"); int week = scan.nextInt(); switch (week){ case 1: System.out.println("星期一:Monday"); break; case 2: System.out.println("星期二:Tuesday"); break; case 3: System.out.println("星期三:Wednesday"); break; case 4: System.out.println("星期四:Thursday"); break; case 5: System.out.println("星期五:Friday"); break; case 6: System.out.println("星期六:Saturday"); break; case 7: System.out.println("星期日:Sunday"); break; default: System.out.println("非法星期值"); break; } } }