Question

如何更改＆＃34的输出;我的名字是＆＃34;从{2 = 1 4 = 1}到＆gt;长度为2的单词数为1，然后在下一行中，长度为4的单词数量为1，就像下面的输出一样：

     //You have typed the sentence: my name is
     //the number of words with the length of  2 is 1
     //the amount of word with the length of 4 is 1

基本上如何更改＆＃39; {2 = 2,4 = 1}＆＃39;一句话？

这是我的代码：

public static void main(String args[]) {

    System.out.println("Write your sentence please:");// prints out the first instruction.
    Scanner scan = new Scanner(System.in); //object initialisation.
    String line=" ";//declaration for letters(String) characters.
    //int max = 20; //declaration for number(int) characters.
    while((line=scan.nextLine())!=null) { //scanner instruction, get a line from the key board.

        String[] tokens = line.split(" ");// splits the words
        Map<Integer,Integer> tokensLength = new HashMap<Integer,Integer>();

        for (int i = 0; i < tokens.length; i++) {// this line of code checks for what must be true to carry on.
            int length = tokens[i].length();

        if (tokensLength.containsKey(length))
            tokensLength.put(length, tokensLength.get(length) + 1);

        else 
            tokensLength.put(length, 1);
    }

    for (Integer length : new TreeSet<Integer>(tokensLength.keySet()))
        System.out.println("You have typed the sentence: " + line);//prints out what you have typed.
    System.out.println("The word length frequency of the sentence is " + tokensLength);//prints out the results
    }//End of scanner instruction
}//End of main

谢谢！任何帮助将非常感激！

Answer 1

使用它迭代地图并编写好的句子：）

for (Entry<Integer, Integer> entry : tokensLength.entrySet()){           
    System.out.println("There are "+entry.getValue()+" words of length "+entry.getKey());
}

如何将输出更改为单词数？

1 个答案: