CharArrayWriter类的size()方法 (CharArrayWriter Class size() method)

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

  size()方法在java.io包中可用。

• size() method is used to get the current size of this buffer (CharArrayWriter).

  size()方法用于获取此缓冲区的当前大小(CharArrayWriter)。

• size() 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.

  size()方法是一种非静态方法，只能通过类对象访问，如果尝试使用类名称访问该方法，则会收到错误消息。

• size() method does not throw an exception at the time of returning the current size.

  返回当前大小时， size()方法不会引发异常。

Syntax:

句法：

    public int size();

Parameter(s):

参数：

• It does not accept any parameter.

  它不接受任何参数。

Return value:

返回值：

The return type of the method is int, it returns the current size of this stream.

方法的返回类型为int ，它返回此流的当前大小。

Example:

例：

// Java program to demonstrate the example
// of int size() method of CharArrayWriter
import java.io.*;
public class SizeOfCAW {public static void main(String[] args) {CharSequence cs = "Java World!!!";
CharArrayWriter caw = null;
try {// Instantiates CharArrayWriter
caw = new CharArrayWriter();
// By using append() method is to
// append cs to the caw before calling
// reset()
caw.append(cs);
// By using toString() method is
// to represent the caw as a string
System.out.print("caw: " + caw.toString());
System.out.println();
// By using size() method isto return
// the size of this stream
int size = caw.size();
// Display size of the stream
System.out.print("caw.size(): " + size);
} catch (Exception ex) {System.out.println(ex.toString());
} finally {// Free all resources linked with this
// stream
if (caw != null)
caw.close();
}
}
}

Output

输出量

caw: Java World!!!
caw.size(): 13

翻译自: https://www.includehelp.com/java/chararraywriter-size-method-with-example.aspx