法1(自己的笨方法,順着往下想即可)
import java.util.*;
public class Main{
public static void main(){
Scanner reader = new Scanner(System.in);
float x = reader.nextFloat();
int a = (int)x/10; //十元紙
int b = ((int)x%10)/5; //五元紙
int c= ((int)x%10)-5; //一元紙幣
float d= x%1*100; //小數部分乘100, 便於計算
int e = (int)d/50; //五角硬幣數量
int f = ((int)d%50)/10; //一角硬幣數量
int g = ((int)d%50)%10/2; //貳分硬幣數量
int h= 2*g%2; //壹分硬幣數量
System.out.println(a+ "張十元");
System.out.println(b+ "張五元");
System.out.println(c+ "張一元");
System.out.println(e+"個五角");
System.out.println(f+"個一角");
System.out.println(g+"個貳分");
System.out.println(h+"個壹分");
}
}
法2 啞鈴的方法
用了數組,很聰明的做法
import java.util.Scanner;
public class Main{
public static void main(String arg[]){
Scanner reader =new Scanner(System.in);
double x=reader.nextDouble();
double []y=new double [10];
System.out.println((int)(x/10)+" 張十元");
y[0]=x%10;
System.out.println((int)y[0]/5+" 張五元");
y[1]=y[0]%5;
System.out.println((int)(y[1]/1)+" 張一元");
y[2]=y[1]%1;
System.out.println((int)(y[2]/0.5)+" 張五角");
y[3]=y[2]%0.5;
System.out.println((int)(y[3]/0.1)+" 張一角");
y[4]=y[3]%0.1;
System.out.println((int)(y[4]/0.02)+" 張貳分");
y[5]=y[4]%0.02;
System.out.println((int)(y[5]/0.01)+" 張壹分");
}
}