Java 如何将输出更改为字数？

如何将输出从{2=1 4=1}更改为>长度为2的字数为1，然后在下一行中，长度为4的字数为1，如下所示：

     //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

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基本上，我怎样才能把{2=2，4=1}变成句子形式

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

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谢谢大家!！任何帮助都将不胜感激

用它在地图上迭代并写出漂亮的句子：

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

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欢迎来到堆栈溢出。你有没有试过什么特别的东西？你在哪里卡住了？这是一个家庭作业问题吗？目前“我的名字是”的输出是句子的字长频率是{2=2，4=1}。我如何将输出稍微更改为上面描述的输出形式？基本上，我如何将{2=2，4=1}更改为句子形式？