import javax.swing.JOptionPane;
//2.4
/*public class LQ
{
public static void main(String []args)
{
String s=JOptionPane.showInputDialog("请输入磅数");
double i=Double.parseDouble(s);
i=i*0.454;
JOptionPane.showMessageDialog(null,i);
}
}*/
//2.5
/*
public class LQ
{
public static void main(String []args)
{
String s=JOptionPane.showInputDialog("请输入费用");
double i=Double.parseDouble(s);
String s1=JOptionPane.showInputDialog("请输入提成率(%)");
double i1=Double.parseDouble(s1);
JOptionPane.showMessageDialog(null,"提成费为："+i*i1*0.01+"\t总费用为："+(i+i*i1*0.01));
}
}*/
//2.6
/*
public class LQ
{
public static void main(String []args)
{
String s=JOptionPane.showInputDialog("请输入0~1000之间的一个整数");
int i=Integer.parseInt(s);
int sum=i%10;
for(i=i/10;i/10!=0;)
{
sum+=i%10;
i=i/10;
}
sum+=i%10;
JOptionPane.showMessageDialog(null,"各数位相加为："+sum);
}
}*/
//2.7
/*
public class LQ
{
public static void main(String[]args)
{
char i1='A';
JOptionPane.showMessageDialog(null,(char) ((int)'a'-(int)'A'+i1));
}
}*/
//2.8
/*
public class LQ
{
public static void main(String[]args)
{
String s=JOptionPane.showInputDialog("请输入一个在0~127之间的整数");
int i=Integer.parseInt(s);
JOptionPane.showMessageDialog(null,(char)i);
}
}*/
//2.9
/*
public class LQ
{
public static void main(String[]args)
{
String s1=JOptionPane.showInputDialog("请输入资金额");
String s2=JOptionPane.showInputDialog("请输入年利率(%)");
String s3=JOptionPane.showInputDialog("请输入年数");
double i1=Double.parseDouble(s1);
double i2=Double.parseDouble(s2);
double i3=Double.parseDouble(s3);
JOptionPane.showMessageDialog(null,i1*Math.pow((1+i2*0.01),12*i3));
}
}*/
//2.10
/*
public class LQ
{
public static void main(String[]args)
{
String s=JOptionPane.showInputDialog("请输入整数");
double i=Double.parseDouble(s);
int i1=(int)i;
int j=i1%100;
JOptionPane.showMessageDialog(null,i1/100+"美元"+j+"美分");
}
}*/
//2.11
/*
import java.util.Scanner;
public class LQ
{
public static void main(String []args)
{
Scanner sc=new Scanner(System.in);
System.out.println("Enter an amount in double,for example 11.56");
double amount=sc.nextDouble();
int remainingAmount=(int)(amount*100);
int numberOfOneDollars=remainingAmount/100;
remainingAmount=remainingAmount%100;
int numberOfQuarters=remainingAmount/25;
remainingAmount=remainingAmount%25;
int numberOfDimes=remainingAmount/10;
remainingAmount=remainingAmount%10;
int numberOfNickels=rem
