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 stream and free all system resources linked with the stream.
close()方法用于关闭此流并释放与该流链接的所有系统资源。
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()方法是一个非静态方法，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。
close() method does not throw an exception at the time of closing the stream.
close()方法在关闭流时不会引发异常。
Syntax:
句法：
public void close();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 void, it returns nothing.
该方法的返回类型为void ，不返回任何内容。
Example:
例：
// Java program to demonstrate the example // of void close() method of PrintWriterimport java.io.*;public class CloseOfPW { public static void main(String[] args) { String str = "Java Programming"; // Instantiates PrintWriter PrintWriter p_stm = new PrintWriter(System.out); // Display str p_stm.println("str: " + str); p_stm.flush(); // By using close() method is to // close the stream p_stm System.out.println("Stream Shutdown...."); p_stm.close(); }}Output
输出量
str: Java ProgrammingStream Shutdown....翻译自: https://www.includehelp.com/java/printwriter-close-method-with-example.aspx