You can’t create arrays with a generic component type. Create an array of an explicit type, like Object[], instead. You can then cast this to PCB[] if you want, but I don’t recommend it in most cases. PCB[] res = (PCB[]) new Object[list.size()]; /* Not type-safe. */ If you want type safety, use a collection like java.util.List<PCB> instead of an … Read more
One option could be letting your custom class implement the Serializable interface and then you can pass object instances in the intent extra using the putExtra(Serializable..) variant of the Intent#putExtra() method. Pseudocode: //To pass: intent.putExtra(“MyClass”, obj); // To retrieve object in second Activity getIntent().getSerializableExtra(“MyClass”); Note: Make sure each nested class of your main custom class has implemented Serializable interface to avoid … Read more
The Arrays class has versions of sort() and binarySearch() which don’t require a Comparator. For example, you can use the version of Arrays.sort() which just takes an array of objects. These methods call the compareTo() method of the objects in the array.
