java 按行读取txt文件并存入数组

Posted 2022-04-23 软件工程小施同学

 	/**
     * 从文件中载入测试集
     *
     * @throws IOException
     */
    public static ArrayList<Tx> loadTestCases(String fileName) throws IOException 

        System.out.println("================================ 1。 end load testSet ================================");

        ArrayList<Tx> testSet = new ArrayList<>(); // 测试集

        BufferedReader br = null;
        try 

            br = new BufferedReader(new FileReader(new File(fileName)));

            String line = null;

            while ((line = br.readLine()) != null) 
                line = line.trim();
                if (!line.isEmpty()) 

                    String[] info = line.split(" ");

                    Tx tx = new Tx(Integer.parseInt(info[1]), Integer.parseInt(info[2]));
                    testSet.add(tx);

                
            

        
        finally 
            if (br != null) 
                br.close();
            
        

        // 打印测试
        for(int i = 0;i < testSet.size(); i ++)
            System.out.println(testSet.get(i));
        

        System.out.println("================================ 2。 end load testSet ================================");

        return testSet;
    

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