计算字符串中单词总数的程序

2025 年 1 月 8 日 | 3 分钟阅读

说明

在此程序中，我们需要计算字符串中存在的单词数。

字符串中存在的单词总数为 7。

算法

定义一个字符串。
要计算字符串中存在的单词，我们将遍历字符串并计算字符串中存在的空格数。因为每个单词都以空格结尾。
如果字符串以空格开头，则不应计算第一个空格，因为它前面没有单词。
要计算最后一个单词，我们将计数加 1。

解决方案

Python

sentence = "Beauty lies in the eyes of beholder";
wordCount = 0;
 
for i in range(0, len(sentence)-1):
    #Counts all the spaces present in the string
    #It doesn't include the first space as it won't be considered as a word
    if(sentence[i] == ' ' and sentence[i+1].isalpha() and (i > 0)):
        wordCount = wordCount + 1;
        

#To count the last word present in the string, increment wordCount by 1
wordCount = wordCount + 1;
 
#Displays the total number of words present in the given string
print("Total number of words in the given string: " + str(wordCount));

输出

Total number of words in the given string: 7

C

#include <stdio.h>
#include <string.h>
 
int main()
{
    char sentence[] = "Beauty lies in the eyes of beholder";
    int wordCount = 0;
    
    for(int i = 0; i < strlen(sentence)-1; i++) {
        //Counts all the spaces present in the string
        //It doesn't include the first space as it won't be considered as a word
        if(sentence[i] == ' ' && isalpha(sentence[i+1]) && (i > 0)) {
            wordCount++;
        }
    }  
    //To count the last word present in the string, increment wordCount by 1
    wordCount++;
    
    //Displays the total number of words present in the given string
    printf("Total number of words in the given string: %d", wordCount);
 
    return 0;
} 

输出

Total number of words in the given string: 7

JAVA

public class CountWords 
{
    public static void main(String[] args) {
        String sentence = "Beauty lies in the eyes of beholder";
        int wordCount = 0;
        
        for(int i = 0; i < sentence.length()-1; i++) {
            //Counts all the spaces present in the string
            //It doesn't include the first space as it won't be considered as a word
            if(sentence.charAt(i) == ' ' && Character.isLetter(sentence.charAt(i+1)) && (i > 0)) {
                wordCount++;
            }
        }
        //To count the last word present in the string, increment wordCount by 1
        wordCount++;
        
        //Displays the total number of words present in the given string
        System.out.println("Total number of words in the given string: " + wordCount);
    }
}

输出

Total number of words in the given string: 7

C#

using System;
                    
public class CountWords
{
    public static void Main()
    {
        String sentence = "Beauty lies in the eyes of beholder";
        int wordCount = 0;
        
        for(int i = 0; i < sentence.Length-1; i++) {
            //Counts all the spaces present in the string
            //It doesn't include the first space as it won't be considered as a word
            if(sentence[i] == ' ' && Char.IsLetter(sentence[i+1]) && (i > 0)) {
                wordCount++;
            }
        }
        //To count the last word present in the string, increment wordCount by 1
        wordCount++;
        
        //Displays the total number of words present in the given string
        Console.WriteLine("Total number of words in the given string: " + wordCount);
    }-
}           

输出

Total number of words in the given string: 7

PHP

<!DOCTYPE html>
<html>
<body>
<?php
$sentence = "Beauty lies in the eyes of beholder";
$wordCount = 0;
 
for($i = 0; $i < strlen($sentence)-1; $i++) {
    //Counts all the spaces present in the string
    //It doesn't include the first space as it won't be considered as a word
    if($sentence[$i] == ' ' && ctype_alpha($sentence[$i+1]) && ($i > 0)) {
        $wordCount++;
    }
}
//To count the last word present in the string, increment wordCount by 1
$wordCount++;
 
//Displays the total number of words present in the given string
print("Total number of words in the given string: " . $wordCount);
?>
</body>
</html>

输出

Total number of words in the given string: 7

下一主题#

计算字符串中单词总数的程序

说明

算法

解决方案

Python

C

JAVA

C#

PHP

联系信息

关注我们

教程

面试题

在线编译器

Python

Java

.Net Framework

AI, ML and Data Science

Cloud Technology

B.Tech and MCA

Web Technology

PHP

Software Testing

Technical Interview

Java Interview

Python

Web Interview

Database Interview

B.Tech / MCA

Important Interview

Software Testing Interview

Company Interviews

Online Compilers

Multiple Choice Questions

程序

计算字符串中单词总数的程序

说明

算法

解决方案

Python

C

JAVA

C#

PHP

相关帖子

查找文本文件中出现次数最多的单词的程序

使用链表实现二叉树的程序

确定给定字符串是否为回文串的程序

计算两个矩阵之和的程序

从循环链表中删除中间新节点的程序

编写查找长方体（Rectangular Prism）体积的程序

对双向链表元素进行排序的程序

显示下三角矩阵的程序

查找字符串的所有可能子集的程序

打印数字图案 5 的程序

订阅 Tpoint Tech

联系信息

关注我们

教程

面试题

在线编译器