BufferedReader 在行中找到特定的单词，从该行中获取数据

Question

 br = new BufferedReader(new FileReader(file));

        while ((finalLine = br.readLine()) != null) {

            String[] reader = finalLine.split(",");

            String foundWord = "dod";

             for (String word : reader) {
              if (word.equals(foundWord)) {

              String NAME = reader[0];
              String PASSWORD = reader[1];
              String CONTACT_NO = reader[2];
              String EMAIL_ADDRESS = reader[3];

我目前正在使用 BufferedReader 从文本文件中读取所有行，如果找到 "dod" 如何在同一行中获取其余信息 1。请帮助。

这些行将有

(line 1) dod, 12345, 00112949, test@testacc.com 
(line 2) abc, 22222, 0004993, aaa@aaaac.com

在文本文件中，如果从上面的代码中找到 dod，我想提取第 1 行数据并保存在变量中。

Answer 1

请试试这个代码：

public static void main(String[] args) {
        BufferedReader reader = null;
        String line;
        String name,pwd,contactNo,email;
        try {
            reader = new BufferedReader(new FileReader("src/files/temp2.txt"));
            String foundWord = "dod";
            while ((line = reader.readLine()) != null) {
                String[] words = line.split(",");
                for (String word : words) {
                    if (word.equals(foundWord)) {
                        name = words[0];
                        pwd = words[1];
                        contactNo = words[2];
                        email = words[3];
                        System.out.println("Details: " +name + "-" + pwd + "-" + contactNo + "-" + email);
                    }
                }
            }
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
             reader.close()
        }
    }

输出将是： Details: dod-12345-00112949-test@testacc.com。如果需要，您可以将该信息存储在一个对象中。

Answer 2

看看这个：

 public class A {

    public static void main(String[] args) throws FileNotFoundException {

        boolean found = false;
        Scanner line = new Scanner(new File("E:/temp.txt"));
        String foundWord = "dod";
        while (line.hasNextLine()) {

            String[] reader = line.nextLine().split(",");

            for (String word : reader) {
                if (word.equals(foundWord)) {

                    found = true;
                    String NAME = reader[0];
                    String PASSWORD = reader[1];
                    String CONTACT_NO = reader[2];
                    String EMAIL_ADDRESS = reader[3];
                    System.out.println(NAME + "\t" + PASSWORD + "\t"
                            + CONTACT_NO + "\t" + EMAIL_ADDRESS);
                }

            }

        }
        if (!found) {
            System.out.println(foundWord + " not found");
        }
    }

}

已添加如果未找到条件

输出：

dod  12345   00112949    test@testacc.com

Answer 3

if found "dod" how to get the rest of the information in the same line

您已经有了它，在 finalLine 变量中。

BufferedReader 在行中找到特定的单词，从该行中获取数据

BufferedReader found specific word in line, take the data from that line

java

arrays

file

bufferedreader