Java处理异常之输入数字异常

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