Q1. Write a java program using recursion to find the power of a number x", where x is doubleand n is integer. (Hint: x"-1).Q2. Write a Java program to demonstrate autoboxing and unboxing of byte and short.(Hint:The conversion of primitive data type (for example, int) into its corresponding wrapper class(for example,Integer) isknown as autoboxing and the reverse process is known as unboxing.)Q3. Write a java program to accept three strings,slas “java Programming" ands2 as "ADVANCE JAVA"s3 as "Programming concepts in Java"Find length of s3. Change sl to Upper case and s2 to Lower case.Q4. Write the class definition and draw the class diagram for the following:Class Name BankAttributes: private: Bname, codepublic: Phone, cityMethods public: manage, deposit, withdrawQ5. a) Write a java program to demonstrate the use of mutable objects to find the Perimeter ofa rectangle using Point (10,4) .Perimeter = 2(length + breadth).b) What is the purpose of a garbage collector?

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QI. Write a java program using recursion to find the power of a number x", where x is double and n is integer. (Hint: x-1).

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

Computational Systems

The computation systems can be defined as the systems that are capable of solving a problem that includes calculations either mathematical or logical, and are able to produce the result as an output. For example, a simple calculator that is given a set of numbers and operators as input and produces the result as an output can be defined as a computational system. The above example is a simple illustration only, the computational systems range from simple devices to complex devices such as the systems that control the SpaceX companies, Starlink satellites which are being quite recently seen in the skies at many places globally.

Question

Q1. Write a java program using recursion to find the power of a number x", where x is double
and n is integer. (Hint: x"-1).
Q2. Write a Java program to demonstrate autoboxing and unboxing of byte and short.
(Hint:The conversion of primitive data type (for example, int) into its corresponding wrapper class(for example,Integer) is
known as autoboxing and the reverse process is known as unboxing.)
Q3. Write a java program to accept three strings,
slas “java Programming" and
s2 as "ADVANCE JAVA"
s3 as "Programming concepts in Java"
Find length of s3. Change sl to Upper case and s2 to Lower case.
Q4. Write the class definition and draw the class diagram for the following:
Class Name Bank
Attributes: private: Bname, code
public: Phone, city
Methods public: manage, deposit, withdraw
Q5. a) Write a java program to demonstrate the use of mutable objects to find the Perimeter of
a rectangle using Point (10,4) .Perimeter = 2(length + breadth).
b) What is the purpose of a garbage collector?

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