ByteArrayInputStream類markSupported()方法 (ByteArrayInputStream Class markSupported() method)

• markSupported() method is available in java.util package.

  markSupported()方法在java.util包中可用。

• markSupported() method is used to check whether this ByteArrayInputStream support mark() and reset() methods or not.

  markSupported()方法用于檢查此ByteArrayInputStream是否支持mark()和reset()方法。

• markSupported() 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.

  markSupported()方法是一種非靜態方法，只能通過類對象訪問，如果嘗試使用類名稱訪問該方法，則會收到錯誤消息。

• markSupported() method does not throw an exception at the time of checking supportive methods.

  在檢查支持方法時， markSupported()方法不會引發異常。

Syntax:

句法：

public boolean markSupported();

Parameter(s):

參數：

• It does not accept any parameter.

  它不接受任何參數。

Return value:

返回值：

The return type of the method is boolean, it returns true when this stream support mark() and reset() method otherwise it returns false.

該方法的返回類型為boolean ，當此流支持mark()和reset()方法時返回true，否則返回false。

Example:

例：

// Java program to demonstrate the example // of boolean markSupported() method of // ByteArrayInputStreamimport java.io.*;public class MarkSupportedBAIS {public static void main(String[] args) throws Exception {byte[] by = {97,98,98,99};// Instantiates ByteArrayInputStream ByteArrayInputStream byte_s = new ByteArrayInputStream(by);// By using markSupported() method check // whether this stream byte_s support// mark() and reset() or notboolean status = byte_s.markSupported();System.out.println("byte_s.markSupported(): " + status);byte_s.close();} }

Output

輸出量

byte_s.markSupported(): true

翻譯自: https://www.includehelp.com/java/bytearrayinputstream-marksupported-method-with-example.aspx

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