從文本文件創建對象

我正在創建一個函數來加載文本文件，問題是，而不是你期望從文本文件格式（名稱| ID |地址|等），它是這樣呈現;從文本文件創建對象

OBE兩個Canobi

專家

假

JK001

F010

的任務

編程和計算機支持

下一個文本文件，我的程序必須能夠加載這組8.這裏的任何數額是我想出了，但不工作無論出於何種原因，它會重新加載來自第一次輸入的相同行。

//Custom function to load files from given inputs 
public static void loadFile(String location,String file,String type) { 
    //Using try/catch to retrieve errors 
    WorkUnit[] wu = null; 
    try { 
     //Using the buffered reader to load the file. 
     BufferedReader in = null; 
     try { 
      LineNumberReader lnr = new LineNumberReader(new FileReader(new File("C:\\Users\\kenji\\IdeaProjects\\Assingment01C_LaTrobe\\src\\workunit.txt"))); 
      lnr.skip(Long.MAX_VALUE); 

      int length = lnr.getLineNumber() + 1; 
      print(length + ""); 

      lnr.close(); 

      in = new BufferedReader(new FileReader("C:\\Users\\kenji\\IdeaProjects\\Assingment01C_LaTrobe\\src\\workunit.txt")); 
      wu = new WorkUnit[length/8]; 
      print(wu.length + ""); 
      String currentLine; 
      for(int i=0;i<length/8;i+=8) { 
       Crew cr = new Crew(); 
       Ship ship = new Ship(); 
       cr.setName(in.readLine()); 
       cr.setClassification(getCrewClassification(in.readLine())); 
       cr.setStatus(getTrueFalse(in.readLine())); 
       cr.setId(in.readLine()); 
       cr.setPoints(Integer.parseInt(in.readLine())); 
       ship.setId(in.readLine()); 
       ship.setShipStatus(getShipStatus(in.readLine())); 
       ship.setPurpose(in.readLine()); 
       wu[i] = new WorkUnit(ship,cr); 
       print(wu[i].toString()); 
      } 
     } finally { 
      in.close(); 
     } 
    } catch (Exception ex) { ex.printStackTrace(); } 
    for(int i = 0; i < wu.length;i++) { 
     print(wu[i].toString()); 
    } 
}

這裏是輸出

16 
2 
WorkUnit{ship=Ship{id='F010', purpose='Programming and Computer Support', shipStatus=on_task}, crew=Crew{id='JK001', name='Obe Two Canobi', experiencePoints=125, status=false, classification=Specialised}, available=true} 
WorkUnit{ship=Ship{id='F010', purpose='Programming and Computer Support', shipStatus=on_task}, crew=Crew{id='JK001', name='Obe Two Canobi', experiencePoints=125, status=false, classification=Specialised}, available=true} 
Exception in thread "main" java.lang.NullPointerException 
    at SpaceCity.loadFile(SpaceCity.java:131) 
    at SpaceCity.addMenuChoice(SpaceCity.java:81) 
    at SpaceCity.MainMenu(SpaceCity.java:32) 
    at SpaceCity.main(SpaceCity.java:17) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
    at java.lang.reflect.Method.invoke(Method.java:497) 
    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144) 

Process finished with exit code 1

來源

2016-04-14 Cacoon

名單吳有2個空格，但我跳八。代碼

for(int i=0;i<length/8;i+=8) {

改變

for(int i=0;i<length/8;i++) {

來源

2016-04-14 04:30:14

從文本文件創建對象

回答

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