Question

我找到了类似于我的问题的解决方案：

import java.util.Scanner;
public class Counter
{
    public static void main ( String args[] )
    {
        String a = "", b = "";
        Scanner s = new Scanner( System.in );

        System.out.println( "Enter a string: " );
        a = s.nextLine();
        while ( b.length() != 1 )
        {
            System.out.println( "Enter a single character: " );
            b = s.next();
        }

        int counter = 0;
        for ( int i = 0; i < a.length(); i++ )
        {
            if ( b.equals(a.charAt( i ) +"") )
                counter++;
        }
        System.out.println( "Number of occurrences: " + counter );
    }
}

此程序仅计算所选字母出现的次数。我需要做同样的事情，但整整一个字。我将如何修改此代码以执行我需要的操作？我不是最优秀的编程人员。非常感谢您的帮助。谢谢！

Answer 1

您可以使用split string

您可以将字符串拆分为空格，如

String[] words =a.split(" ");

然后像

一样循环播放

for(String word : words) {
    if(word.equals(testWordToCompare)
        counter++;
    }
}

所以你的新代码看起来像是：

import java.util.Scanner;
public class Counter
{
    public static void main ( String args[] )
    {
        String a = "", testWordToCompare = "exist";
        Scanner s = new Scanner( System.in );

        System.out.println( "Enter a string: " );
        a = s.nextLine();
        String[] words =a.split(" ");
        int counter = 0;
        for(String word : words) {
           if(word.equals(testWordToCompare)
               counter++;
           }
        }
        System.out.println( "Number of occurrences of " + testWordToCompare +" is : " + counter );
    }
}

计算输入单词的次数

1 个答案: