输入3.4,利用线程计算整数部分与小数的和

class p4 {
public static void main(String[] args) {
while (true)
{
Scanner input=new Scanner(System.in);
String s=input.nextLine();
if(s.equals(“exit”))
break;
int x=s.indexOf("+");
int a=Integer.parseInt(s.substring(0,x));
int b=Integer.parseInt(s.substring(x+1,s.length()));
MyThread myThread=new MyThread(a,b);
myThread.run();

    }
}

}
class MyThread implements Runnable{
int x,y;
MyThread(int a,int b){
x=a;
y=b;
}
@Override
public void run() {
add();
}
public void add()
{
System.out.println(x+"+"+y+"="+(x+y));
}
}