Display 3.1

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.IOException;
public class Untitled1 {
public static void main(String[] args ) throws IOException
{ double b,c,d;
BufferedReader keyboard= new BufferedReader(new InputStreamReader(System.in));
System.out.println("Enter net income.\n" + "Do not include a dollar sign or any commas.");
double a = Double.parseDouble(keyboard.readLine());
if (a<=15000) b=0; else if ((a>15000) &&amp; (a<=30000))
b=(0.05*(a-15000));
else
{c=0.05*15000;
d=0.1*(a-30000);
b=c+d;
}
System.out.println("Tax due =" +b);

}

}

結果