java异常机制-----------try_catch

package cn.zxg.Exception;

import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;

/**
 * try_catch_finally捕获异常
 */

public class Test02 {
    public static void main(String[] args) {
            //一个try可以包含多个catch
        FileReader reader=null;

           try {
               reader= new FileReader("D:\\a.txt");
               char c1=(char)reader.read();
               System.out.println(c1);
           } catch (FileNotFoundException e) {//子类异常在父类异常前面
               e.printStackTrace();
           } catch (IOException e) {
               e.printStackTrace();
           }finally {
               try {
                   reader.close();
               } catch (IOException e) {
                   e.printStackTrace();
               }
           }


    }

    }