未報告的異常java.io.FileNotFoundException;必須被捕或宣佈被拋出6

Question

我們繼續運行此錯誤。目標是將數組中的數據讀取到輸出文件中。謝謝您的幫助！

public static void save(Salesperson[] array) 

    { 
    PrintStream outfile = null; 
    try 
    { 
     outfile = new PrintStream(new FileOutputStream("data.txt")); 
    } 
     catch(FileNotFoundException e) 
     { 
      JOptionPane.showMessageDialog(null,"The file could not be created."); 
     } 
     System.setOut(new PrintStream(new FileOutputStream("output.txt"))); 
    for(int k = 0; k < array.length; k++) 
    { 
     System.out.println(array[k]); 
    } 

    outfile.close(); 
    System.out.println("Saved."); 

    } 

Answer 1

你所得到的錯誤，因爲沒有與FileOutputStream你沒有趕上/ throw -declaring相關的checked exception。