Answered: 1)Write a Java program which stores…

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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1)Write a Java program which stores three values by using singly linked list.
- Node class
1. stuID, stuName, stuScore, //data fields
2. constructor
3. update and accessor methods
- Singly linked list class which must has following methods:
1. head, tail, size// data fields
2. constructor
3. update and accessor methods
a. getSize() //Returns the number of elements in the list.
b. isEmpty( ) //Returns true if the list is empty, and false otherwise.
c. getFirstStuID( ), getStuName( ), getFirstStuScore( )
d. addFirst(stuID, stuName, stuScore)
e. addLast(stuID, stuName, stuScore)
f. removeFirst ( ) //Removes and returns the first element of the list.
g. displayList( ) //Displays all elements of the list by traversing the linked list.
- Test class – initialize a singly linked list instance. Test all methods of singly linked list class.

2. Write a Java program which stores three values by using doubly linked list.
- Node class
4. stuID, stuName, stuScore, //data fields
5. constructor
6. update and accessor methods
- Singly linked list class which must has following methods:
4. head, tail, size// data fields
5. constructor
6. update and accessor methods
a. getSize() //Returns the number of elements in the list.
b. isEmpty( ) //Returns true if the list is empty, and false otherwise.
c. getFirstStuID( ), getStuName( ), getFirstStuScore( )
d. addFirst (stuID, stuName, stuScore)
e. addLast(stuID, stuName, stuScore)
f. removeFirst( ) //Removes and returns the first element of the list.
g. removeLast( ) //Removes and returns the first element of the list.
h. displayList( ) //Displays all elements of the list by traversing the linked list.
- Test class – initialize a doubly linked list instance. Test all methods of doubly linked list class.

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