分配雙字符串數組

Question

我想創建一個新的String [] []數組，但日食給我一個錯誤：

public class CurriculumVitae { 

String[][] education = new String[2][6]; //throws error here and expects "{" but why? 
education[0][0] = "10/2012 − heute"; 
education[0][1] = "Studium der Informatik"; 
education[0][2] = "Johannes Gutenberg−Universit \\」at Mainz"; 
education[0][3] = ""; 
education[0][4] = ""; 
education[0][5] = ""; 
education[1][0] = "10/2005 − 5/2012"; 
education[1][1] = "Abitur"; 
education[1][2] = "Muppet-Gymnasium"; 
education[1][3] = "Note: 1,3"; 
education[1][4] = ""; 
education[1][5] = "";} 

Answer 1

你的代碼必須在方法內部。例如：

public class CurriculumVitae { 

    public static void main(String[] args){ 
    String[][] education = new String[2][6]; 
    education[0][0] = "10/2012 − heute"; 
    education[0][1] = "Studium der Informatik"; 
    education[0][2] = "Johannes Gutenberg−Universit \\」at Mainz"; 
    education[0][3] = ""; 
    education[0][4] = ""; 
    education[0][5] = ""; 
    education[1][0] = "10/2005 − 5/2012"; 
    education[1][1] = "Abitur"; 
    education[1][2] = "Muppet-Gymnasium"; 
    education[1][3] = "Note: 1,3"; 
    education[1][4] = ""; 
    education[1][5] = ""; 
    } 
} 

Answer 2

您的聲明沒問題。

但是，您必須使用初始化塊來分配array值。

只需在大括號內附上所有education[x][y]語句，或將它們移動到構造函數中。

• 初始化塊例如

  public class CurriculumVitae { 
      String[][] education = new String[2][6]; 
      // initializer block 
      { 
       education[0][0] = "10/2012 − heute"; 
       education[0][1] = "Studium der Informatik"; 
      } 
  } 
  

• 構造示例

  public class CurriculumVitae { 
  
      String[][] education = new String[2][6]; 
      // constructor 
      public CurriculumVitae() 
      { 
       education[0][0] = "10/2012 − heute"; 
       education[0][1] = "Studium der Informatik"; 
      } 
  }