如何從文本文件中選取一行並將其轉換爲數組對象？

Question

好吧，這是代碼，我需要以某種方式從文本文件中取出一行並轉換爲數組對象。像P [0] = 「asdasdasd」

public class Patient2 { 
    public static void main(String args[]) 
    { 

     int field = 0; 
     String repeat = "n"; 
     String repeat1 = "y"; 
     Scanner keyIn = new Scanner(System.in); 



     // FILE I/O 
     try{ 
       // Open the file that is the first 
       // command line parameter 
       FileInputStream fstream = new FileInputStream("Patient.txt"); 
       BufferedReader br = new BufferedReader(new InputStreamReader(fstream)); 
       String strLine; 
       //Read File Line By Line 
       while ((strLine = br.readLine()) != null) { 
       // Print the content on the console 
       System.out.println (strLine); 
       } 
       //Close the input stream 
       in.close(); 
       }catch (Exception e){//Catch exception if any 
       System.err.println("Error: " + e.getMessage()); 
       } 
     ArrayList<Patient1> patients=new ArrayList<Patient1>(); 
     Patient1 p =new Patient1(); 
     //set value to the patient object 
     patients.add(p); 
     System.out.println(p); 
    } 
} 

Answer 1

在打印到控制檯，您可以將其添加到List<String>

List<String> lines = new ArrayList<String>(); 
while ((strLine = br.readLine()) != null) { 
    // Print the content on the console 
    System.out.println (strLine); 
    lines.add(strLine) 
} 

注相反：你的代碼可以是乾淨多了，你可以處理閉幕資源在最後

Answer 2

只需使用ArrayList<String>與add(strline);
和使用toArray(new String [])獲取輸入流已關閉後的數組。

ArrayList<String> list = new ArrayList<String>(); 
... 

while ((strLine = br.readLine()) != null) { 
    list.add(strLine); 
} 
... 

String [] s = list.toArray(new String []);