C/C++经典程序训练3---模拟计算器

import java.util.Scanner;
class Jisuan{
int a,b,sum;
char c;
int s1(int a,int b,char c){
if(c == ‘+’)
sum = a+b;
if(c == ‘-’)
sum = a-b;
if(c == '’)
sum = ab;
if(c == ‘/’)
sum = a/b;
return sum;
}
}
public class Main{
public static void main(String args[]) {
Scanner in = new Scanner(System.in);
int m,n;
char c;
Jisuan jisuan = new Jisuan();
m= in.nextInt();
n = in.nextInt();
c = in.next().charAt(0);//注意字符的输入问题
System.out.println(jisuan.s1(m,n,c));
}
}