lx3_4.java

jbuilder2005

//lx3_4.java
import java.io.*;       //调入IO类包
  
public 	class	lx3_4{
    public static void	 main(String args[])
    {
        int i=0;
        double  a=0,b=0;
        String s="";
        try{
            BufferedReader in=new BufferedReader(new InputStreamReader(System.in));
            System.out.println("请输入一个整数:");
            s=in.readLine();
            i=Integer.parseInt(s);
            System.out.println("请输入一个双精度数:");
            s=in.readLine();
            a=Double.parseDouble(s);
        } catch(Exception e) {}
        b=a*i;
       System.out.println("输出结果是:"+b);
    }
}