将从 .txt 文件读取的字符串输入到数组中

让我们把问题分解一下。

• 读取文件
• 解析文件中的每一行以确定 aword和 atranslation
• 将word和存储translation在数据结构中（@Glen Pierce 关于使用地图的建议是一个很好的建议）

假设我们的文件是这样的，我们使用逗号分隔单词和翻译（这也是我的西班牙语词汇量的范围）：

hello,hola
good,bueno

现在一些代码，让我们将文件读入地图。

// a map of word to translation
Map<String, String> wordMap = new HashMap<String, String>();

// a class that can read a file (we wrap the file reader in a buffered reader because it's more efficient to read a file in chunks larger than a single character)
BufferedReader fileReader = new BufferedReader(new FileReader("my-file.txt"));

// a line from the file
String line;

// read lines until we read a line that is null (i.e. no more lines)
while((line = fileReader.getLine()) != null) {
    // split the line, returns an array of parts
    String[] parts = line.split(",");

    // store the parts in meaningful variables
    String word = parts[0];
    String translation = parts[1];

    // now, store the word and the translation in the word map
    wordMap.put(word, translation);
}

// close the reader (note: you should do this with a try/finally block so that if you throw an exception, you still close the reader)
fileReader.close();

所以现在我们有一个地图，其中包含文件中的所有单词和翻译。给定一个词，您可以像这样检索翻译：

String word = "hello";
String translation = wordMap.get(word);
System.out.println(word + " translates to " + translation);

输出：

hello translates to hola

我想下一步是让用户给你一个词，让你返回正确的翻译。我会把它留给你。