//以floor()四捨五入到小數第2位

//以floor()四捨五入到小數第2位

public class Round2{
public static void main(String[] args) {
java.util.Scanner scanner = 
new java.util.Scanner(System.in);
int replay = 0;
do {
System.out.print("輸入數值:(例1.3含小數位)");
double num1 = scanner.nextDouble();
//System.out.print((int)(Math.round(num1*100.0))/100.0);
System.out.print((int)(Math.floor(num1*100.0))/100.0);
System.out.print("繼續(1:繼續 0:結束)？");
replay = scanner.nextInt();
} while(replay == 1);
}
}