存储在字符串中

发布于 2024-12-06 03:35:20 字数 870 浏览 4 评论 0原文

可能的重复：
什么是在Java中用分隔符连接值列表的最优雅的方法？

我在属性文件中的 3 个不同行中列出了 3 个不同的单词。 QWERT 警察重要的是

我想读取该属性文件并将这 3 个单词存储在 String 中，而不是存储在由空格分隔的 aarylist 中。输出应该是这样的 String str = { QWERT POLICE MATTER}

现在我使用了以下代码并获得了单词之间没有空格的输出：字符串 str = {QWERTPOLICEMATTER}。我应该对代码做什么来获取由空格分隔的单词的字符串结果。

FileInputStream in = new FileInputStream("abc.properties");
            pro.load(in);
            Enumeration em = pro.keys();
            StringBuffer stringBuffer = new StringBuffer();
            while (em.hasMoreElements()){
               String str = (String)em.nextElement();
               search = (stringBuffer.append(pro.get(str)).toString());

原文

Possible Duplicate:
What's the most elegant way to concatenate a list of values with delimiter in Java?

I have 3 different words listed in property file in 3 different lines.
QWERT
POLICE
MATTER

I want to read that property file and store those 3 words in String, not in aarylist separated by whitespace. The output should look like this
String str = { QWERT POLICE MATTER}

Now I used the follwoing code and getting the output without white space in between the words:
String str = {QWERTPOLICEMATTER}. What should I do to the code to get the string result with words separated by whitespace.

FileInputStream in = new FileInputStream("abc.properties");
            pro.load(in);
            Enumeration em = pro.keys();
            StringBuffer stringBuffer = new StringBuffer();
            while (em.hasMoreElements()){
               String str = (String)em.nextElement();
               search = (stringBuffer.append(pro.get(str)).toString());

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若能看破又如何 2024-12-13 03:35:20

尝试：

search = (stringBuffer.append(" ").append(pro.get(str)).toString());

Try:

search = (stringBuffer.append(" ").append(pro.get(str)).toString());

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酒与心事 2024-12-13 03:35:20

只需在循环中添加一个空格即可。请参阅下面的额外附录：

while (em.hasMoreElements()){
    String str = (String)em.nextElement();
    search = (stringBuffer.append(pro.get(str)).toString());
    if(em.hasNext()){
        stringBuffer.append(" ")
    }
}

Just append a blank space in your loop. See the extra append below:

while (em.hasMoreElements()){
    String str = (String)em.nextElement();
    search = (stringBuffer.append(pro.get(str)).toString());
    if(em.hasNext()){
        stringBuffer.append(" ")
    }
}

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