从给定字符串中提取单词的程序

任务是从给定的字符串中提取单词。单词之间可能有一个或多个空格。

例子：

Input : geeks for geeks
Output : geeks
         for
         geeks

Input : I love   coding.
Output: I 
         love
         coding

我们在下面的帖子中讨论了一个解决方案。
如何在 C/C++、 Python和Java中拆分字符串？

在这篇文章中，讨论了使用 stringstream 的新解决方案。

1. Make a string stream.
2. extract words from it till there are still words in the stream.
3. Print each word on new line.

即使单词之间有多个空格，此解决方案也有效。

C++

// C++ program to extract words from
// a string using stringstream
#include
using namespace std;
 
void printWords(string str)
{
    // word variable to store word
    string word;
 
    // making a string stream
    stringstream iss(str);
 
    // Read and print each word.
    while (iss >> word)
        cout << word << endl;
}
 
// Driver code
int main()
{
    string s = "sky is blue";
    printWords(s);
    return 0;
}

Java

// A Java program for splitting a string
// using split()
import java.io.*;
class GFG
{
    // Method splits String into
    // all possible tokens
    public static void printWords(String s)
    {    
        // Using split function.
        for (String val: s.split(" "))
         
            // printing the final value.
            System.out.println(val);
    }
     
    // Driver Code
    public static void main(String args[])
    {
        // Sample string to check the code
        String Str = "sky is blue";
         
        // function calling
        printWords(Str);
    }
}
 
// This code is contributed
// by Animesh_Gupta

Python3

# Python3 program to extract words from
# a string
def printWords(strr):
    word = strr.split(" ")
    print(*word, sep="\n")
 
# Driver code
s = "sky is blue"
printWords(s)
 
# This code is contributed by shubhamsingh10

C#

// A C# program for splitting a string
// using split()
using System;
class GFG
{
    // Method splits String into
    // all possible tokens
    public static void printWords(String s)
    {    
        // Using split function.
        foreach(String val in s.Split(" "))
         
            // printing the final value.
            Console.WriteLine(val);
    }
     
    // Driver Code
    static public void Main ()
    {
        // Sample string to check the code
        String Str = "sky is blue";
         
        // function calling
        printWords(Str);
    }
}
 
// This code is contributed
// by shivanisingh

Javascript

输出：

sky
is
blue