printstream

PrintStream类clearError()方法 (PrintStream Class clearError() method)

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

  clearError()方法在java.io包中可用。

• clearError() method is used to clear the internal error state of this PrintStream.

  clearError()方法用于清除此PrintStream的内部错误状态。

• clearError() 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.

  clearError()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。

• clearError() method does not throw an exception at the time of clearing error state.

  clearError()方法在清除错误状态时不会引发异常。

Syntax:

句法：

    protected void clearError();

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 clearError() method of 
// PrintStream
import java.io.*;
public class ClearErrorOfPS extends PrintStream {
public ClearErrorOfPS(OutputStream os) {
super(os);
}
public static void main(String[] args) {
String str = "Java Programming";
// Instantiates ClearErrorOfPS
ClearErrorOfPS p_stm = new ClearErrorOfPS(System.out);
// Display str
p_stm.println("str: " + str);
// By using flush() method is to
// flush the stream immediately
p_stm.flush();
System.out.println("Stream Flushed...");
// By using clearError() method is used to
// clear errors if exists in this stream
p_stm.clearError();
// 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 Programming
Stream Flushed...
Stream Shutdown....

翻译自: https://www.includehelp.com/java/printstream-clearerror-method-with-example.aspx

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