Some information, such as exam questions or bid prices, must remain unreadable until an agreed time, even if it has already ...
At the end of the array lesson I talked about something like this. int[] a = {1, 2, 3}; int[] b = a; b[0] = 99; System.out.println(a[0]); // 99 になる Even though I changed b, a also changed. The exact ...