Update

Question

I have written a program that uses 2 million arrays of integer values. However, it only uses 200 arrays at a time. I have 200 intelligent cars that move over a terrain of 10 000 blocks (divided according to GPS values). Each block has an array of 129x28 that has integer values. When any car moves into a new block, it must retrieve the array which is related to this block then it uses a value in that array. Then it makes a decision based on that value, then it moves on and so on. So the entire system of 200 cars and 10 000 blocks, while each car has its own array distinct values, the total number of arrays is 2 millions. I need to simply retrieve 1 array of each car at a time slot = 200 arrays at a time

这些阵列将在申请开始时设立并填满零,然后申请开始填满这些阵列,最后只能使用。因此,我撰写了一份法典,在该方案中设立这些阵列。

在我想要的时候,我能够把阵列储存在人类发展报告中,并取回?

Update

Since I had 2 million arrays and I can t store & retrieve 200 arrays in 1-1.9 seconds I down-graded the research to use less environment features and ended up with with using 2 million arrays of size 7 x 28. which used 7 * 28 * 10 000 * 4 (integer) * 200 (cars) bytes which consumed only 1.6 GB if RAM. Good luck if you re having similar problem, PM if you are in a similar situation and I hope I will be able to help.

Answer 1

One reasonably easy solution is to use the ObjectOutputStream and ObjectInputStream classes to write and read your arrays.

举例来说,在纸面上写一个阵列:

    int [][] array = new int [129] [28];
    // fill in your array here
    ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream(fileName));
    out.writeObject(array);
    out.close();

下面是一些例子,读到先前从磁盘中节省的阵列:

    ObjectInputStream in = new ObjectInputStream(new FileInputStream(fileName));
    int [] [] inArray = (int [] []) in.readObject();
    in.close();

Update

友情链接