ex2_1.java

我在做实验时编的小程序！

import java.io.*;
public class Ex2_1
{
public static void main(String args[])throws IOException
{
int num1,num2,sum;
String str;
BufferedReader buf;
buf=new BufferedReader(new InputStreamReader(System.in));
System.out.print("Input the first integer:");
str=buf.readLine();
num1=Integer.parseInt(str);
System.out.print("Input the second integer:");
str=buf.readLine();
num2=Integer.parseInt(str);
sum=num1+num2;
System.out.println("The sum is "+sum);
}
}