使用的OutputStream

Question

String data="this we want append in that file"; 
byte[] getbyte = data.getBytes(); 
outputstream.write(getbyte); 
outputstream.flush(); 

通過使用這些代碼I M試圖寫在particlar文件中的數據，但數據不會被添加它將該文件

數據添加到特定的文件

Answer 1

進口java.io. *;

公共類WriteFileExample {

公共靜態無效的主要（字串[] args）{

String strFilePath = "d:/FileIO.txt"; 

try 
{ 
    FileOutputStream fos = new FileOutputStream(strFilePath); 
    String strContent = "Write File using Java FileOutputStream example !"; 

    /* 
    * To write byte array to a file, use 
    * void write(byte[] bArray) method of Java FileOutputStream class. 
    * 
    * This method writes given byte array to a file. 
    */ 

    fos.write(strContent.getBytes()); 

    /* 
    * Close FileOutputStream using, 
    * void close() method of Java FileOutputStream class. 
    * 
    */ 

    fos.close(); 

} 
catch(FileNotFoundException ex) 
{ 
    System.out.println("FileNotFoundException : " + ex); 
} 
catch(IOException ioe) 
{ 
    System.out.println("IOException : " + ioe); 
} 

}}