Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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(Java)

  • Open up Eclipse and create a new class called ArrayListPractice.java
  • Next, copy and paste the below program into your file and run the code.
  • Your job is to take the given code, remove all the arrays and replace them with the identical ArrayLists. There should be no arrays in your program.
  • You will need to call the ArrayList methods as defined in the lesson notes above.
  • Note that you will not be able to do method overloading with ArrayLists so you should assign different names to your methods.
  • Once you have made the changes, you should get identical output as the given version of the program.
  • Submit your program when you are finished.

/**  

* @author

 * CIS 36B

 * Activity 5.2  

*/ import java.util.ArrayList;

import java.util.Scanner;

public class ArrayListPractice {    

public static void main(String[] args) {  

               int scores[] = {95, 96, 97, 98, 99};        

System.out.println("Integer test scores:");        

print(scores);       

  System.out.println();                

System.out.println("After adding extra credit:");        

addExtraCredit(scores);        

print(scores);        

System.out.println();                

double  rainfall[] = {23.4, 16.4, 18.9, 52.7};        

System.out.println("Rainfall in Inches:");        

print(rainfall);        

System.out.println();                

String vowels[] = {"a", "e", "i", "o", "u"};        

System.out.println("Vowels in the Latin Alphabet:");        

print(vowels);        

System.out.println();     }    

/**    

 * Prints an array of integer values      

* @param values the array of ints    

 */     public static void print(int values[]) {       

  for (int i = 0; i < values.length - 1; i++) {           

  System.out.print(values[i] + ", ");         }        

System.out.println(values[values.length-1]);     }       

  /**    

 * Prints an array of double values    

 * @param values the array of doubles    

 */    

public static void print(double values[]) {        

for (int i = 0; i < values.length - 1; i++) {            

System.out.print(values[i] + ", ");         }       

  System.out.println(values[values.length-1]);     }        

/**    

 * Prints an array of String values    

 * @param values the array of Strings      

*/     public static void print(String values[]) {       

  for (int i = 0; i < values.length - 1; i++) {            

System.out.print(values[i] + ", ");         }        

System.out.println(values[values.length-1]);     }   

    /**    

 * Add 5 to each element in an integer array      

* @param values the array of ints      

*/     public static void addExtraCredit(int values[]) {        

for(int i = 0; i < values.length; i++) {           

  values[i]+=5;       

  }    

}

}

 

Your Program Should Give the Identical Output to the Output Below:

 

Integer test scores: 95, 96, 97, 98, 99

After adding extra credit: 100, 101, 102, 103, 104

Rainfall in Inches: 23.4, 16.4, 18.9, 52.7

Vowels in the Latin Alphabet:

a, e, i, o, u

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