一
import java.util.Scanner;
public class shang {
public static void main (String[] args) {
System.out.println("请输入两个整数: ") ;
Scanner sc=new Scanner (System.in) ;
float a=sc.nextInt();
float b=sc.nextInt();
float c=0;
if(b==0){
System.out.println("没有商") ;
} else {
c=a/b;
}
System.out.println(c) ;
}
}
二
import java.util.Scanner;
public class shang {
public static void main (String[] args) {
System.out.println("请输入两个整数,并用空格隔开: ") ;
Scanner sc=new Scanner (System.in) ;
float a=sc.nextInt();
float b=sc.nextInt();
float c=a/b;
if(a==0||b==0){
System.out.println("错误") ;
} else {
System.out.println(c) ;
}
}
}