java异常机制-----------throws

package cn.zxg.Exception;

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

/**
 * 使用throws声明异常
 */

public class Test03 {
    public static void main(String[] args)throws IOException{
        readMyFile();
        
    }
    
    public static void readMyFile() throws IOException {
        FileReader reader=null;
        reader= new FileReader("D:\\a.txt");
        char c1=(char)reader.read();
        System.out.println(c1);
        if(reader!=null){
            reader.close();
        }
    }
}