scanner close

掃描器類close()方法 (Scanner Class close() method)

• close() method is available in java.util package.

  close()方法在java.util包中可用。

• close() method is used to close this Scanner object when opened otherwise this method does not affect.

  當打開時，使用close()方法關閉此Scanner對象，否則此方法不受影響。

• 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()方法是一個非靜態方法，只能通過類對象訪問，如果嘗試使用類名稱訪問該方法，則會收到錯誤消息。

• close() method does not throw an exception at the time of closing Scanner.

  close()方法在關閉Scanner時不會引發異常。

Syntax:

句法：

    public void close();

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 the method is void, it returns nothing.

該方法的返回類型為void ，不返回任何內容。

Example:

例：

// Java program to demonstrate the example 
// of void close() method of Scanner 
import java.util.*;
public class CloseScanner {
public static void main(String[] args) {
String str = "Hi, IncludeHelp";
// Instantiates a Scanner object with
// the given string str
Scanner sc = new Scanner(str);
System.out.println("sc.nextLine(): " + sc.nextLine());
// By using close() method is to 
// close the Scanner object
sc.close();
}
}

Output

輸出量

sc.nextLine(): Hi, IncludeHelp

翻譯自: https://www.includehelp.com/java/scanner-close-method-with-example.aspx

scanner close