将2D数组转换为1D数组-Converta2Darrayintoa1Darray

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I'm not sure if you're trying to convert your 2D array into a 1D array (as your question states), or put the values from your 2D array into the ArrayList you have. I'll assume the first, but I'll quickly say all you'd need to do for the latter is call list.add(temp), although temp is actually unneeded in your current code.

我不确定您是否尝试将2D数组转换为1D数组(如问题所述),或者将2D数组中的值放入您拥有的ArrayList中。我假设第一个,但我会很快说出你需要做的就是调用list.add(temp),尽管你当前的代码中实际上不需要temp。

If you're trying to have a 1D array, then the following code should suffice:

如果你想要一个1D数组,那么下面的代码就足够了:

public static int mode(int[][] arr)
{
  int[] OneDArray= new int[arr.length * arr.length];
  for(int i = 0; i