使用java中的内置字符串初始化多维数组

Question

I have a string something like:

String someString=[[((2016, 5, 21, 2, 0, 0), (2016, 5, 23, 7, 0, 0)), [('TASK1', 'DONE'), ('TASK2', 'DONE'), ('TASK3', 'DONE'), ('TASK4', 'DONE'), ('TASK5', 'DONE')]]]

I want to use this string to initialize a multidimensional array so that i can retrieve the values using indexes:

array[0] should give ((2016, 5, 21, 2, 0, 0), (2016, 5, 23, 7, 0, 0)) array[0][1] should give (2016, 5, 23, 7, 0, 0) and so on ..

In python, I was able to do it easily using the eval function but not sure how to do it in Java.

Answer 1

What you are looking for seems to be a 3-dimensional array. Declare the array by adding three square brackets, and use curly braces to signify the end of each array. For example:

String someString [][][] = {
            {{"2016", "5", "21", "2", "0", "0"},{"2016", "5", "23", "7", "0", "0"}},
            {{"TASK1", "DONE"}, {"TASK2", "DONE"}}
            };

In this case, someString[0][0][0] will be 2016, and someString[1][1][0] will be TASK2, etc.

Displaying an array in java is slightly more complicated than python, where the standard way is to use multiple for loops to go through each array. For example:

        for (int h=0; h<someString.length; h++){
        for (int i=0; i<someString[h].length; i++){
            System.out.print(someString[h][i][0] + "\t");
            for (int j=0; j<someString[h][i].length; j++){
                System.out.print(someString[h][i][j]+"\t");
            }
            System.out.println();
        }
    }