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Java StringTokenizer countTokens()用法及代碼示例


StringTokenizer類的countTokens()方法計算在此方法生成任何進一步的異常之前可以調用此令牌化程序的nextToken方法的次數。
注意：在此過程中，當前位置不前進。

用法:

public int countTokens()

參數：該方法不帶任何參數。


返回值：該方法用於使用當前定界符集返回字符串中剩餘的令牌數。

下麵的程序說明StringTokenizer的countTokens()方法的用法：
示例1:

// Java code to illustrate countTokens() method 
  
import java.util.*; 
  
public class StringTokenizer_Demo1 { 
    public static void main(String args[]) 
    { 
  
        // Creating a StringTokenizer 
        StringTokenizer str_arr 
            = new StringTokenizer( 
                "Lets practice at GeeksforGeeks"); 
  
        // Counting the tokens 
        int count = str_arr.countTokens(); 
        System.out.println("Total number of Tokens: "
                           + count); 
  
        // Print the tokens 
        for (int i = 0; i < count; i++) 
            System.out.println("token at [" + i + "] : "
                               + str_arr.nextToken()); 
    } 
}
輸出： 
Total number of Tokens: 4
token at [0] : Lets
token at [1] : practice
token at [2] : at
token at [3] : GeeksforGeeks

示例2:

// Java code to illustrate countTokens() method 
  
import java.util.*; 
  
public class StringTokenizer_Demo2 { 
    public static void main(String args[]) 
    { 
  
        // Creating a StringTokenizer 
        StringTokenizer str_arr 
            = new StringTokenizer( 
                "Welcome to GeeksforGeeks"); 
  
        // Counting the tokens 
        int count = str_arr.countTokens(); 
        System.out.println("Total number of Tokens: "
                           + count); 
  
        // Print the tokens 
        for (int i = 0; i < count; i++) 
            System.out.println("token at [" + i + "] : "
                               + str_arr.nextToken()); 
    } 
}
輸出： 
Total number of Tokens: 3
token at [0] : Welcome
token at [1] : to
token at [2] : GeeksforGeeks


相關用法


注：本文由純淨天空篩選整理自Chinmoy Lenka大神的英文原創作品 StringTokenizer countTokens() Method in Java with Examples。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。