public class Storm { //Attributes private String stormName; private int stormYear; private String stormStart; private String stormEnd; private int stormMag; /** * Constructor * * @param stormName * @param stormYear * @param stormStart * @param stormEnd * @param stormMag */ public Storm(String stormName, int stormYear, String stormStart, String stormEnd, int stormMag) { this.stormName = stormName; this.stormYear = stormYear; this.stormStart = stormStart; this.stormEnd = stormEnd; this.stormMag = stormMag; } /** * @return the stormName */ public String getStormName() { return stormName; } /** * @param stormName the stormName to set */ public void setStormName(String stormName) { this.stormName = stormName; } /** * @return the stormYear */ public int getStormYear() { return stormYear; } /** * @param stormYear the stormYear to set */ public void setStormYear(int stormYear) { this.stormYear = stormYear; } /** * @return the stormStart */ public String getStormStart() { return stormStart; } /** * @param stormStart the stormStart to set */ public void setStormStart(String stormStart) { this.stormStart = stormStart; } /** * @return the stormEnd */ public String getStormEnd() { return stormEnd; } /** * @param stormEnd the stormEnd to set */ public void setStormEnd(String stormEnd) { this.stormEnd = stormEnd; } /** * @return the stormMag */ public int getStormMag() { return stormMag; } /** * @param stormMag the stormMag to set */ public void setStormMag(int stormMag) { this.stormMag = stormMag; } @Override public String toString() { return \"\ \" + getStormYear() + \": \" + getStormName() + \" \" + ((getStormMag() == -1) ? \"(no info)\" : ((getStormMag() == 0) ? \"(tropical storm)\" : \"(hurricane level \" + getStormMag() + \")\")) + \": \" + ((getStormStart().equals(\"\")) ? \"(no start)\" : getStormStart().substring(0, 2) + \"/\" + getStormStart().substring(2)) + \" - \" + ((getStormEnd().equals(\"\")) ? \"(no end)\" : getStormEnd().substring(0, 2) + \"/\" + getStormEnd().substring(2)); } } import java.io.File; import java.io.FileNotFoundException; import java.util.Scanner; public class Database { private static final int MAX_SIZE = 50; //Attributes private Storm[] stormArr; private int count; /** * Constructor * Accepts a file and attempts to read it * Fills the storm array with the data */ public Database(File fileName) { //Initialize array this.stormArr = new Storm[MAX_SIZE]; this.count = 0; //Scanner to read from the file Scanner in = null; try { in = new Scanner(fileName); //Read data from the file while(in.hasNextLine()) { //Year of storm/ Name of storm/ mmdd storm started/ mmdd storm ended/ magnitude of storm String line = in.nextLine(); String[] data = line.replaceAll(\"/\", \"/ \").split(\"/\"); if(data.length < 5) System.out.println(\"Database entry not in the correct format: \" + line); //Add data to array this.stormArr[this.count] = new Storm(data[1].trim(), Integer.parseInt(data[0].trim()), data[2].trim(), data[3].trim(), (data[4].trim()..

1. public class Storm {
//Attributes
private String stormName;
private int stormYear;
private String stormStart;
private String stormEnd;
private int stormMag;
/**
* Constructor
*
* @param stormName
* @param stormYear
* @param stormStart
* @param stormEnd
* @param stormMag
*/
public Storm(String stormName, int stormYear, String stormStart, String stormEnd, int
stormMag) {
this.stormName = stormName;
this.stormYear = stormYear;
this.stormStart = stormStart;
this.stormEnd = stormEnd;
this.stormMag = stormMag;
}
/**
* @return the stormName
*/
public String getStormName() {
return stormName;
}
/**
* @param stormName the stormName to set
*/

2. public void setStormName(String stormName) {
this.stormName = stormName;
}
/**
* @return the stormYear
*/
public int getStormYear() {
return stormYear;
}
/**
* @param stormYear the stormYear to set
*/
public void setStormYear(int stormYear) {
this.stormYear = stormYear;
}
/**
* @return the stormStart
*/
public String getStormStart() {
return stormStart;
}
/**
* @param stormStart the stormStart to set
*/
public void setStormStart(String stormStart) {
this.stormStart = stormStart;
}
/**
* @return the stormEnd
*/
public String getStormEnd() {
return stormEnd;
}
/**
* @param stormEnd the stormEnd to set
*/

3. public void setStormEnd(String stormEnd) {
this.stormEnd = stormEnd;
}
/**
* @return the stormMag
*/
public int getStormMag() {
return stormMag;
}
/**
* @param stormMag the stormMag to set
*/
public void setStormMag(int stormMag) {
this.stormMag = stormMag;
}
@Override
public String toString() {
return " " + getStormYear() + ": " + getStormName() + " " +
((getStormMag() == -1) ? "(no info)" :
((getStormMag() == 0) ? "(tropical storm)" : "(hurricane level " +
getStormMag() + ")")) + ": " +
((getStormStart().equals("")) ? "(no start)" : getStormStart().substring(0, 2) + "/"
+ getStormStart().substring(2)) +
" - " +
((getStormEnd().equals("")) ? "(no end)" : getStormEnd().substring(0, 2) + "/" +
getStormEnd().substring(2));
}
}
import java.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;
public class Database {
private static final int MAX_SIZE = 50;
//Attributes
private Storm[] stormArr;
private int count;

4. /**
* Constructor
* Accepts a file and attempts to read it
* Fills the storm array with the data
*/
public Database(File fileName) {
//Initialize array
this.stormArr = new Storm[MAX_SIZE];
this.count = 0;
//Scanner to read from the file
Scanner in = null;
try {
in = new Scanner(fileName);
//Read data from the file
while(in.hasNextLine()) {
//Year of storm/ Name of storm/ mmdd storm started/ mmdd storm ended/ magnitude
of storm
String line = in.nextLine();
String[] data = line.replaceAll("/", "/ ").split("/");
if(data.length < 5)
System.out.println("Database entry not in the correct format: " + line);
//Add data to array
this.stormArr[this.count] = new Storm(data[1].trim(), Integer.parseInt(data[0].trim()),
data[2].trim(), data[3].trim(),
(data[4].trim().equals("")) ? -1 : Integer.parseInt(data[4].trim()));
this.count += 1;
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} finally {
//Close scanner
if(in == null)

5. in.close();
}
}
/**
* Returns a storm array which matches the name
*
* @param name
*/
public void getStormsByName(String name) {
boolean found = false;
for (Storm storm : stormArr) {
if((storm != null ) && (storm.getStormName().equalsIgnoreCase(name))) {
found = true;
System.out.print(storm);
}
}
if(!found)
System.out.println("Could not find any storm named "" + name + "".");
}
/**
* Returns a storm array which matches the year
*
* @param year
*/
public void getStormsByYear(int year) {
boolean found = false;
for (Storm storm : stormArr) {
if((storm != null ) && (storm.getStormYear() == year)) {
found = true;
System.out.print(storm);
}
}

6. if(!found)
System.out.println("Could not find any storm in the year "" + year + "".");
}
/**
* Prints all storm details
*/
public void printAll() {
if(this.stormArr.length == 0)
System.out.println("No data.");
else {
for (Storm storm : stormArr) {
if(storm != null)
System.out.print(storm);
}
}
}
}
import java.io.File;
import java.util.Scanner;
public class Prog1 {
/**
* Displays a list of commands
*/
public static void printCommands() {
System.out.println(" Current available commands:");
System.out.println("1 --> Search for a storm name");
System.out.println("2 --> Search for a year");
System.out.println("3 --> Print all storms");
System.out.println("9 --> Exit");
}
public static void main(String args[]) {
if (args.length == 0) // Check if file name is provided in the command
// line
System.out.println("File name not specified");
else {

7. File f = new File(args[0]);
if (!f.exists()) // Check if file exists
System.out.println("Input file does not exist.");
else if (f.length() == 0) {
System.out.println("No data in the file");
} else {
// Create Database object
Database db = new Database(f);
// Scanner to get user input
Scanner in = new Scanner(System.in);
// Variable to get user command
int cmd = 0;
//Start
System.out.println("Welcome to the CS-102 Storm Tracker Program");
while (true) {
printCommands();
System.out.print("Your choice? ");
cmd = in.nextInt();
in.nextLine(); //Clear keyboard buffer
switch (cmd) {
case 1: //Search storm by name
System.out.println("Enter storm name prefix: ");
String name = in.nextLine();
db.getStormsByName(name);
break;
case 2: //Search storm by year
System.out.println("Enter storm year: ");
int year = in.nextInt();
db.getStormsByYear(year);
break;
case 3: //Print all storms
db.printAll();
break;
case 9: //Exit
in.close();

8. System.exit(0);
default:
System.out.println("Invalid command. Please try again.");
}
System.out.println();
}
}
}
}
}
SAMPLE INPUT:
2004/Ali///
2003/Bob///
1980/Sarah/0123/0312/0
1956/Michael/1211/1223/4
1988/Ryan/0926/1019/
1976/Tim/0318/1010/0
2006/Ronald/0919/1012/2
1996/Mona/0707/0723/1
2000/Kim/0101/0201/1
2000/Jim/1101//3
SAMPLE OUTPUT:
Welcome to the CS-102 Storm Tracker Program
Current available commands:
1 --> Search for a storm name
2 --> Search for a year
3 --> Print all storms
9 --> Exit
Your choice? 3
2004: Ali (no info): (no start) - (no end)
2003: Bob (no info): (no start) - (no end)
1980: Sarah (tropical storm): 01/23 - 03/12
1956: Michael (hurricane level 4): 12/11 - 12/23
1988: Ryan (no info): 09/26 - 10/19
1976: Tim (tropical storm): 03/18 - 10/10
2006: Ronald (hurricane level 2): 09/19 - 10/12

9. 1996: Mona (hurricane level 1): 07/07 - 07/23
2000: Kim (hurricane level 1): 01/01 - 02/01
2000: Jim (hurricane level 3): 11/01 - (no end)
Current available commands:
1 --> Search for a storm name
2 --> Search for a year
3 --> Print all storms
9 --> Exit
Your choice? 1
Enter storm name prefix:
Ali
2004: Ali (no info): (no start) - (no end)
Current available commands:
1 --> Search for a storm name
2 --> Search for a year
3 --> Print all storms
9 --> Exit
Your choice? 2
Enter storm year:
2000
2000: Kim (hurricane level 1): 01/01 - 02/01
2000: Jim (hurricane level 3): 11/01 - (no end)
Current available commands:
1 --> Search for a storm name
2 --> Search for a year
3 --> Print all storms
9 --> Exit
Your choice? 9
Solution
public class Storm {
//Attributes
private String stormName;
private int stormYear;
private String stormStart;

10. private String stormEnd;
private int stormMag;
/**
* Constructor
*
* @param stormName
* @param stormYear
* @param stormStart
* @param stormEnd
* @param stormMag
*/
public Storm(String stormName, int stormYear, String stormStart, String stormEnd, int
stormMag) {
this.stormName = stormName;
this.stormYear = stormYear;
this.stormStart = stormStart;
this.stormEnd = stormEnd;
this.stormMag = stormMag;
}
/**
* @return the stormName
*/
public String getStormName() {
return stormName;
}
/**
* @param stormName the stormName to set
*/
public void setStormName(String stormName) {
this.stormName = stormName;
}
/**
* @return the stormYear
*/

11. public int getStormYear() {
return stormYear;
}
/**
* @param stormYear the stormYear to set
*/
public void setStormYear(int stormYear) {
this.stormYear = stormYear;
}
/**
* @return the stormStart
*/
public String getStormStart() {
return stormStart;
}
/**
* @param stormStart the stormStart to set
*/
public void setStormStart(String stormStart) {
this.stormStart = stormStart;
}
/**
* @return the stormEnd
*/
public String getStormEnd() {
return stormEnd;
}
/**
* @param stormEnd the stormEnd to set
*/
public void setStormEnd(String stormEnd) {
this.stormEnd = stormEnd;
}
/**
* @return the stormMag
*/

12. public int getStormMag() {
return stormMag;
}
/**
* @param stormMag the stormMag to set
*/
public void setStormMag(int stormMag) {
this.stormMag = stormMag;
}
@Override
public String toString() {
return " " + getStormYear() + ": " + getStormName() + " " +
((getStormMag() == -1) ? "(no info)" :
((getStormMag() == 0) ? "(tropical storm)" : "(hurricane level " +
getStormMag() + ")")) + ": " +
((getStormStart().equals("")) ? "(no start)" : getStormStart().substring(0, 2) + "/"
+ getStormStart().substring(2)) +
" - " +
((getStormEnd().equals("")) ? "(no end)" : getStormEnd().substring(0, 2) + "/" +
getStormEnd().substring(2));
}
}
import java.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;
public class Database {
private static final int MAX_SIZE = 50;
//Attributes
private Storm[] stormArr;
private int count;
/**
* Constructor
* Accepts a file and attempts to read it
* Fills the storm array with the data
*/

13. public Database(File fileName) {
//Initialize array
this.stormArr = new Storm[MAX_SIZE];
this.count = 0;
//Scanner to read from the file
Scanner in = null;
try {
in = new Scanner(fileName);
//Read data from the file
while(in.hasNextLine()) {
//Year of storm/ Name of storm/ mmdd storm started/ mmdd storm ended/ magnitude
of storm
String line = in.nextLine();
String[] data = line.replaceAll("/", "/ ").split("/");
if(data.length < 5)
System.out.println("Database entry not in the correct format: " + line);
//Add data to array
this.stormArr[this.count] = new Storm(data[1].trim(), Integer.parseInt(data[0].trim()),
data[2].trim(), data[3].trim(),
(data[4].trim().equals("")) ? -1 : Integer.parseInt(data[4].trim()));
this.count += 1;
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} finally {
//Close scanner
if(in == null)
in.close();
}
}
/**
* Returns a storm array which matches the name

14. *
* @param name
*/
public void getStormsByName(String name) {
boolean found = false;
for (Storm storm : stormArr) {
if((storm != null ) && (storm.getStormName().equalsIgnoreCase(name))) {
found = true;
System.out.print(storm);
}
}
if(!found)
System.out.println("Could not find any storm named "" + name + "".");
}
/**
* Returns a storm array which matches the year
*
* @param year
*/
public void getStormsByYear(int year) {
boolean found = false;
for (Storm storm : stormArr) {
if((storm != null ) && (storm.getStormYear() == year)) {
found = true;
System.out.print(storm);
}
}
if(!found)
System.out.println("Could not find any storm in the year "" + year + "".");
}
/**
* Prints all storm details

15. */
public void printAll() {
if(this.stormArr.length == 0)
System.out.println("No data.");
else {
for (Storm storm : stormArr) {
if(storm != null)
System.out.print(storm);
}
}
}
}
import java.io.File;
import java.util.Scanner;
public class Prog1 {
/**
* Displays a list of commands
*/
public static void printCommands() {
System.out.println(" Current available commands:");
System.out.println("1 --> Search for a storm name");
System.out.println("2 --> Search for a year");
System.out.println("3 --> Print all storms");
System.out.println("9 --> Exit");
}
public static void main(String args[]) {
if (args.length == 0) // Check if file name is provided in the command
// line
System.out.println("File name not specified");
else {
File f = new File(args[0]);
if (!f.exists()) // Check if file exists
System.out.println("Input file does not exist.");
else if (f.length() == 0) {
System.out.println("No data in the file");
} else {

16. // Create Database object
Database db = new Database(f);
// Scanner to get user input
Scanner in = new Scanner(System.in);
// Variable to get user command
int cmd = 0;
//Start
System.out.println("Welcome to the CS-102 Storm Tracker Program");
while (true) {
printCommands();
System.out.print("Your choice? ");
cmd = in.nextInt();
in.nextLine(); //Clear keyboard buffer
switch (cmd) {
case 1: //Search storm by name
System.out.println("Enter storm name prefix: ");
String name = in.nextLine();
db.getStormsByName(name);
break;
case 2: //Search storm by year
System.out.println("Enter storm year: ");
int year = in.nextInt();
db.getStormsByYear(year);
break;
case 3: //Print all storms
db.printAll();
break;
case 9: //Exit
in.close();
System.exit(0);
default:
System.out.println("Invalid command. Please try again.");
}
System.out.println();
}

17. }
}
}
}
SAMPLE INPUT:
2004/Ali///
2003/Bob///
1980/Sarah/0123/0312/0
1956/Michael/1211/1223/4
1988/Ryan/0926/1019/
1976/Tim/0318/1010/0
2006/Ronald/0919/1012/2
1996/Mona/0707/0723/1
2000/Kim/0101/0201/1
2000/Jim/1101//3
SAMPLE OUTPUT:
Welcome to the CS-102 Storm Tracker Program
Current available commands:
1 --> Search for a storm name
2 --> Search for a year
3 --> Print all storms
9 --> Exit
Your choice? 3
2004: Ali (no info): (no start) - (no end)
2003: Bob (no info): (no start) - (no end)
1980: Sarah (tropical storm): 01/23 - 03/12
1956: Michael (hurricane level 4): 12/11 - 12/23
1988: Ryan (no info): 09/26 - 10/19
1976: Tim (tropical storm): 03/18 - 10/10
2006: Ronald (hurricane level 2): 09/19 - 10/12
1996: Mona (hurricane level 1): 07/07 - 07/23
2000: Kim (hurricane level 1): 01/01 - 02/01
2000: Jim (hurricane level 3): 11/01 - (no end)
Current available commands:
1 --> Search for a storm name
2 --> Search for a year

18. 3 --> Print all storms
9 --> Exit
Your choice? 1
Enter storm name prefix:
Ali
2004: Ali (no info): (no start) - (no end)
Current available commands:
1 --> Search for a storm name
2 --> Search for a year
3 --> Print all storms
9 --> Exit
Your choice? 2
Enter storm year:
2000
2000: Kim (hurricane level 1): 01/01 - 02/01
2000: Jim (hurricane level 3): 11/01 - (no end)
Current available commands:
1 --> Search for a storm name
2 --> Search for a year
3 --> Print all storms
9 --> Exit
Your choice? 9