FileInputStream類close()方法 (FileInputStream Class close() method)

• close() method is available in java.io package.

  close()方法在java.io包中可用。

• close() method is used to close this FileInputStream and free all system resources linked with this stream.

  close()方法用于關(guān)閉此FileInputStream并釋放與此流鏈接的所有系統(tǒng)資源。

• close() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.

  close()方法是一個(gè)非靜態(tài)方法，只能通過類對(duì)象訪問，如果嘗試使用類名稱訪問該方法，則會(huì)收到錯(cuò)誤消息。

• close() method may throw an exception at the time of closing the stream.

  close()方法在關(guān)閉流時(shí)可能會(huì)引發(fā)異常。

  IOException: This exception may throw while getting any input/output error or when this stream is closed by close() method.

  IOException ：在獲取任何輸入/輸出錯(cuò)誤時(shí)或通過close()方法關(guān)閉此流時(shí)，可能引發(fā)此異常。

Syntax:

句法：

public void close();

Parameter(s):

參數(shù)：

• It does not accept any parameter.

  它不接受任何參數(shù)。

Return value:

返回值：

The return type of the method is void, it returns nothing.

該方法的返回類型為void ，不返回任何內(nèi)容。

Example:

例：

// Java program to demonstrate the example // of void close() method of FileInputStreamimport java.io.*;public class CloseOfFIS {public static void main(String[] args) throws Exception {FileInputStream fis_stm = null;int count = 0;try {// Instantiates FileInputStreamfis_stm = new FileInputStream("D:\\includehelp.txt");// By using read() method is to read// a byte from fis_stmcount = fis_stm.read();// Display corresponding bytes valuebyte b = (byte) count;// Display value of bSystem.out.println("fis_stm.read(): " + b);// By using close() method is to close// close the stream fis_stm.close();// when we call read() method after// closing the stream will result an exceptioncount = fis_stm.read();} catch (Exception ex) {System.out.println(ex.toString());} finally {// with the help of this block is to// free all necessary resources linked// with the streamif (fis_stm != null) {fis_stm.close();}}} }

Output

輸出量

fis_stm.read(): 0 java.io.IOException: Stream Closed

翻譯自: https://www.includehelp.com/java/fileinputstream-close-method-with-example.aspx

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