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Question: I. Construct a solution algorithm for the following problems. Y…
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I. Construct a solution algorithm for the following problems.
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• A defining problem
• A pseudo code algorithm
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• A desk check of the algorithm
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1. An Employee file contains the employee number, employee name, department number and their salary.
The department number contains value 10, 20 and 30. Increment for the employee will be calculated
depends on their department number. If the department number is 10, 20 and 10 salary increment will be
40%, 60% and 80% respectively. Construct an algorithm that will read a record on the file, calculate the
salary increment for that record, and print the employee number, employee name, department number
and new salary after increment.
2. A member records contains member name, gender (M or F), age (in years) and marital status (single or
married) for each member. Design an algorithm that will read through the file and calculate the numbers
of married men, single men, married women and single women. Print these numbers on member
summary report. If any single men are over 30 years of age, print their names and ages on a separate
eligible bachelors report.
3. Design an algorithm that will prompt for and receive the time expressed in 2400 format (e.g. 2305
hours), convert it to 12-hour format (e.g. 11.05 pm) and display the new time to the screen. Your program is
to repeat the processing until a sentinel time of 9999 is entered
II. Implement the three questions algorithm in Assignment 1 into Java programming. Your code should
contain appropriate validations and must focus on code optimization. You need to submit:
• Three Java code
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• For each question explain (100-150 words) how the logic works.
• Three sample output screenshot (Two normal and one error test case)
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Hi here is the complete answer, algorithm code and also I've provided file for testing purpose
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Dont mess up with data arrangement inside file, I've taken values to be separated by comma in file
1.
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open file
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while not End_of_File
read a line
extract/ split data from line
if (employee_number is 10)
salary = salary + salary * 0.4
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if (employee_number is 20)
salary = salary + salary * 0.6
if (employee_number is 30)
salary = salary + salary * 0.8
print(employee number, employee name, department_number, salary)
Employee.java
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import java.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;
public class Employee
{
public static void main(String[] args) throws FileNotFoundException
{
Scanner sc = new Scanner(System.in);
System.out.println("Enter filename: ");
String fileName = sc.nextLine();
File file = new File(fileName);
if(! file.exists())
{
System.out.println("File " + fileName + " does not exist");
System.exit(1);
}
Scanner fileSC = new Scanner(file);
while(fileSC.hasNextLine())
{
String line = fileSC.nextLine();
String splits[] = line.split(",");
double salary = Double.parseDouble(splits[3]);
if(splits[0].equals("10"))
{
salary += salary * 0.4;
}
if(splits[0].equals("20"))
{
salary += salary * 0.6;
}
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if(splits[0].equals("30"))
{
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salary += salary * 0.8;
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}
System.out.println("Employee Number: " + splits[0] + " Name: " + splits[1] + " Department Number: "
+ splits[2]
+ " Salary: " + salary);
}
fileSC.close();
}
}
employee.txt
10,Bagota,CS122,32000
10,Jack Sparrow,BG122,54000
20,Susti,CS122,34000
30,Friend,CS122,3200
20,Kismi,CS122,43000
30,Mubasa,CS122,23000
..............
2.
married_men = 0, single_men = 0, married_women=0, single_women = 0
eligible_bachelors
open file
while not End_of_File
read a line
extract/ split data from line
member name, gender (M or F), age (in years) and marital status
if (gender is M and marital_status is single)
single_men = single_men + 1
if (gender is F and marital_status is single)
single_women = single_women + 1
if (gender is M and marital_status is married)
married_men = married_men + 1
if (gender is F and marital_status is married)
married_women =married_women + 1
if(gender is M and marital_status is single and age > 30)
add name in eligible_bachelors
print(single_men)
print(single_women)
print(married_men)
print(married_women)
print('These are eligible bachelors')
print (eligible_bachelors)
members.java
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import java.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;
import java.util.ArrayList;
public class member
{
public static void main(String[] args) throws FileNotFoundException
{
Scanner sc = new Scanner(System.in);
System.out.println("Enter filename: ");
String fileName = sc.nextLine();
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File file = new
File(fileName);
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if(! file.exists())
{
System.out.println("File " + fileName + " does not exist");
System.exit(1);
}
Scanner fileSC = new Scanner(file);
int single_men = 0, married_men = 0, single_women = 0, married_women= 0;
ArrayList<String> bachelors = new ArrayList<String>();
while(fileSC.hasNextLine())
{
String line = fileSC.nextLine();
String splits[] = line.split(",");
if(splits[1].equals("M") && splits[3].equals("single"))
single_men++;
if(splits[1].equals("F") && splits[3].equals("single"))
single_women++;
if(splits[1].equals("M") && splits[3].equals("married"))
married_men++;
if(splits[1].equals("F") && splits[3].equals("married"))
married_women++;
int age = Integer.parseInt(splits[2]);
if(splits[1].equals("M") && splits[3].equals("single") && age>30)
bachelors.add(splits[0] + ", age: " + age);
}
System.out.println("Single men: " + single_men);
System.out.println("Single women: " + single_women);
System.out.println("Married men: "+ married_men);
System.out.println("Married women: "+ married_women);
System.out.println("\nFollowing are eligible bachelors");
for(String s: bachelors)
System.out.println(s);
}
}
members.txt
Mia,F,32,married
Freddy,M,33,married
Wick,M,40,single
Labina,F,40,single
Ashad,M,35,single
Jenny,F,23,married
.....................
3.
if( time_expressed <0)
print('invalid time')
return
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if(time_expressedHome
/100 > 24
|| time_expressed
> 2400)
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print('time cannot be more than 2400 hours')
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return
if(time_expressed % 100 > 59)
print('invalid minutes')
return
if(time_expressed == 2400)
twelve_hours = 0000 AM
else if(time_expressed >= 1300)
twelve_hours = time_expressed - 1200 PM
else if(time_expressed >= 1200)
twelve_hours = time_expressed AM
else
twelve_hours = time_expressed AM
twelve_hour_format.java
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import java.util.Scanner;
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public class twelve_hour_format
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{
public static void main(String[] args)
{
Scanner sc = new Scanner(System.in);
System.out.println("Enter time in 2400 format: ");
int time_expressed = sc.nextInt();
sc.nextLine();
if(time_expressed < 0)
{
System.out.println("Time cannot be negative");
}
else if( time_expressed / 100 > 24 || time_expressed >2400)
{
System.out.println("Time cannot be more than 2400");
}
else if(time_expressed % 100 > 59)
{
System.out.println("Invalid minutes");
}
else
{
if(time_expressed == 2400)
System.out.println("0000 AM");
else if(time_expressed >= 1300)
System.out.println(time_expressed-1200 + " PM"); //
else if(time_expressed >=1200)
System.out.println(time_expressed + " PM");
else
System.out.println(time_expressed + " AM");
}
}
}
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