package 异常课堂;
import java.util.Scanner;
public class 数字异常 {
public static void main(String[] args) {
System.out.println("请输入数字");
try {
Scanner sc = new Scanner(System.in);
int a = sc.nextInt();
} catch (Exception ex) {
System.out.println("请输入正确的数字" + ex.getMessage());
ex.printStackTrace();
}
}
}
运行结果
转播
