安全监督备案手续:java程序改错!

来源:百度文库 编辑:杭州交通信息网 时间:2024/05/08 14:30:23
import java.io.*;
public class test5
{
public static void main (String args[]) throws IOException
{
InputStreamReader r1 = new InputStreamReader(System.in);
BufferedReader in1 = new BufferedReader(r1);

String s1 = in1.readline();
int mark = Integer.parselnt(s1);

if (mark>=75)
{
if (mark>=90)
{
System.out.println("A");
}
else
{
System.out.println("B");
}
}
else
{if (mark>=60)
{
System.out.println("C");
}
else
{
System.out.println("D");
}
}
}
}

改成这两句就可以了
String s1 = in1.readLine();
int mark = Integer.parseInt(s1);