Java System类console()方法及示例
系統類console()方法 (System class console() method)
console() method is available in java.lang package.
console()方法在java.lang包中可用。
console() method is used to return the console object which is uniquely associated with the current JVM(Java Virtual Machine) if exists.
如果存在,則使用console()方法返回與當前JVM(Java虛擬機)唯一關聯的控制臺對象。
console() method is static, it is accessible with the class name too.
console()方法是靜態的,也可以使用類名進行訪問。
console() method does not throw any exception.
console()方法不會引發任何異常。
Syntax:
句法:
public static Console console();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 this method is Console, it returns the Console object if exists else it returns null when none of the System console exists.
此方法的返回類型為Console ,如果存在則返回Console對象,否則在不存在任何系統控制臺時返回null。
Example:
例:
// Java program to demonstrate the example of // console() method of System Class.import java.io.*;public class ConsoleMethod {public static void main(String[] args) {// Creating an object of ConsoleConsole con = System.console();if (con == null)// Display when console is nullSystem.out.println("Null Console");else {String str = con.readLine("%s", "Java Programming");// Display when console is not nullSystem.out.println("The value of str is :" + str);}} }Output
輸出量
E:\Programs>javac ConsoleMethod.java E:\Programs>java ConsoleMethod Null Console翻譯自: https://www.includehelp.com/java/system-class-console-method-with-example.aspx
總結
以上是生活随笔為你收集整理的Java System类console()方法及示例的全部內容,希望文章能夠幫你解決所遇到的問題。
- 上一篇: 颐和园年票需要预约吗
- 下一篇: 吴忠做输卵管手术最好的医院推荐