console java

控制台类writer()方法 (Console Class writer() method)

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

  writer()方法在java.io包中可用。

• writer() method is used to get a distinct PrintWriter object linked with this Console.

  writer()方法用于获取与此控制台链接的独特PrintWriter对象。

• writer() 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.

  writer()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。

• writer() method does not throw an exception at the time of returning associated PrintWriter.

  返回关联的PrintWriter时， writer()方法不会引发异常。

Syntax:

句法：

    public PrintWriter writer();

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 PrintWriter, it gets PrintWriter object linked with this Console.

该方法的返回类型为PrintWriter ，它获取与此控制台链接的PrintWriter对象。

Example:

例：

// Java program to demonstrate the example 
// of PrintWriter writer() method of Console
import java.io.*;
public class WriterOfConsole {
public static void main(String[] args) {
try {
// Instantiates Console , PrintWriter
// object
Console con = System.console();
PrintWriter pw = con.writer();
// Display by using PrintWriter 
// object pw
pw.println("con.writer(): " + "Java Programming!!!");
} catch (Exception ex) {
System.out.println(ex.toString());
}
}
}

Output

输出量

con.writer(): Java Programming!!!

翻译自: https://www.includehelp.com/java/console-writer-method-with-example.aspx

console java