Java - 在构造函数中初始化数组

Question

我想在构造函数中初始化二维数组。但是，当我在类中声明数组的实例变量时，我遇到了问题。这将是错误的，如果我这样做：

public class Data { 
private String [][] tabel; 
public Data(){ 
    tabel = {{"ID", "NAME"}, 
      {"101", "Max"}, 
      {"102", "Mark"}, 
      {"103", "Downey"}, 
      {"104", "Matthew"}, 
      {"105", "Richard"}}; 
} 

我怎么能解决这个问题？

Answer 1

你需要写new Type[]在数组的初始化前，像这样：

tabel = new String[][]{ 
      new String[]{"ID", "NAME"}, 
      new String[]{"101", "Max"}, 
      new String[]{"102", "Mark"}, 
      new String[]{"103", "Downey"}, 
      new String[]{"104", "Matthew"}, 
      new String[]{"105", "Richard"}};