Question

我正在尝试打印字符串中三个字母单词的数量。下面的代码输出字符串中0-3个字母单词的数量。

import java.util.Scanner;

public class Test {

public static void main(String[] args) {
    // TODO Auto-generated method stub

    Scanner input = new Scanner(System.in);

    System.out.println("Input a string:"); 
       String s;
          s = input.nextLine();

     String[] strings = s.split(" ");
     int[] counts = new int[4];
     for(String str : strings)
          if(str.length() < counts.length) counts[str.length()] += 1;
     for(int i = 1; i < counts.length; i++)
         System.out.println(i + " letter words: " + counts[i]); 

     input.close();

    // TODO Auto-generated method stub

   }//end main

}//end class

如何修改此代码只显示三个字母的数字？有什么想法吗？

Answer 1

public class Test {

public static void main(String[] args) {
    // TODO Auto-generated method stub

    Scanner input = new Scanner(System.in);

    System.out.println("Input a string:"); 
       String s;
          s = input.nextLine();

     String[] strings = s.split(" ");
     int[] counts = new int[4];
     for(String str : strings)
          if(str.length() < counts.length) counts[str.length()] += 1;

     System.out.println(3 + " letter words: " + counts[3]); 

     input.close();

    // TODO Auto-generated method stub

   }//end main

}

它可能看起来像那样，ommited loop for(int i = 1; i < counts.length; i++)。

计算三个字母单词的频率

1 个答案: