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Computer Java Autoboxing Difficulty: Medium

To extract a sublist, we use . . . . . . . . brackets. Numbers in PHP can't be infinitely large or small, there is some minimum and maximum size. If more larger (or smaller) numbers are needed then . . . . . must be used: 1. GPM libraries 2. GMP libraries 3. CBMath 4. BCMath Which operation is not required to maintain balance in a B-Tree after insertion or deletion? In C++, which type of inheritance is not supported directly but can be achieved using a combination of other types of inheritance? What is the result of the following code snippet? class Parent { int x = 10; } class Child extends Parent { int x = 20; void display() { System.out.println(super.x + " " + x); } } public class Main { public static void main(String[] args) { Child obj = new Child(); obj.display(); } }