27 lines
786 B
Java
27 lines
786 B
Java
package ch07;
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import java.io.IOException;
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import java.util.Scanner;
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public class throwsDemo {
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public static void test() throws NullPointerException, IOException {
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System.out.println("请输入一个数字（0，1）：");
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Scanner in = new Scanner(System.in);
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int flag = in.nextInt();
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if (flag == 1)
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throw new NullPointerException();
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else
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throw new IOException();
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}
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public static void main(String[] args) {
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try {
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test();
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} catch (NullPointerException e) {
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System.out.println("系统抛出了" + e.getClass() + "类型的异常");
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} catch (IOException e) {
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System.out.println("系统抛出了" + e.getClass() + "类型的异常");
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}
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}
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}
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