java - 如何替换字符串消息中的单词？

Question

我已经尝试了一些不同的代码一段时间了。当我尝试替换该单词时，提示我的替换代码错误。如何替换消息中的所有单词？

public class StorySynthesiser {

    public static void main(String[] args) {

        String message;
        String name ="Tiger";
        String result = message.replaceAll("Hare", name);


        message = "";
        message = message +"There once was a speedy Hare who bragged about how fast he could run.\n";
        message = message +"Tired of hearing him boast, the Tortoise challenged him to a race.\n";
        message = message +"All the animals in the forest gathered to watch.\n";
        message = message +"The Hare ran down the road for a while and then paused to rest. \n";
        message = message +"He looked back at the tortoise and cried out, \"How do you expect to win this race when you are walking along at your slow, slow pace?\n";
        message = message +"The Tortoise walked and walked, never ever stopping until he came to the finish line.\n";       
        message = message +"The animals who were watching cheered so loudly for Tortoise that they woke up the Hare. The Hare stretched, yawned and began to run again, but it was too late.\n";
        message = message +"Tortoise had already crossed the finish line in 2 hours ago/n";



        JOptionPane.showMessageDialog(null, message);

Answer 1

您首先要替换，然后赋值，并且还在 DialogPane 中显示其他变量，因此您需要执行以下操作:

    String name ="Tiger";


    message = "";
    message = message +"There once was a speedy Hare who bragged about how fast he could run.\n";
    message = message +"Tired of hearing him boast, the Tortoise challenged him to a race.\n";
    message = message +"All the animals in the forest gathered to watch.\n";
    message = message +"The Hare ran down the road for a while and then paused to rest. \n";
    message = message +"He looked back at the tortoise and cried out, \"How do you expect to win this race when you are walking along at your slow, slow pace?\n";
    message = message +"The Tortoise walked and walked, never ever stopping until he came to the finish line.\n";       
    message = message +"The animals who were watching cheered so loudly for Tortoise that they woke up the Hare. The Hare stretched, yawned and began to run again, but it was too late.\n";
    message = message +"Tortoise had already crossed the finish line in 2 hours ago/n";

   String result = message.replaceAll("Hare", name);

    JOptionPane.showMessageDialog(null, result);