package it.cast_01;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
public class FileOutputStreamDemo1 {
public static void main(String[] args) {
/*
try {
fos = new FileOutputStream("fos1.txt");
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
fos.write("Hello".getBytes());
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
fos.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}*/
// 一起如何做异常
/*try{
fos = new FileOutputStream("fos1.txt");
fos.write("Hello".getBytes());
fos.close();
}catch(FileNotFoundException e){
e.printStackTrace();
}catch(IOException e){
e.printStackTrace();
}*/
//改进版
//
FileOutputStream fos = null;
try{
fos = new FileOutputStream("fos1.txt");
fos.write("Hello".getBytes());
//当创建对象不成功时候,就不会执行close()方法
//fos.close();
}catch(FileNotFoundException e){
e.printStackTrace();
}catch(IOException e){
e.printStackTrace();
}finally{
//当创建对象成功时候,在执行close()方法。
if(fos!=null){
try {
fos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
}