catch (Exception InputMismatch) { System.out.printin ("Please input an integer number"): System.out.printin ("Does the flight make more than one stop to its destination? answer true or false: ") : try ( transit - sc.nextBoolean (): catch (Exception InputMismatch) ( System.out.printin ("Please answer (true) or (false) "): System.out.printin ("Is the flight international? answer true or false: "): try ( international - sc.nextBoolean (): catch (Exception InputMismatch) ( System.out.printin ("Please answer (true) or (false) "): boolean FlightCheck - true: for (int i - 0; i< Flights.size (): i++) { if (flightNumber -- Flights.get (i).getFlightNum () ){ FlightCheck - false: if (FlightCheck - false) { System.out.printin ("Flight " + flightNumber + "already exists"): elsel Flight flight - new Flight (flightNumber, cap, transit, international): System.out.printin (Flights): g20428164.AhmedAlsomali20428 164> O main > while (option !- 9) > switch (option) > case 1: > for (nti - 0; i < Fights.size); i++) > if (fightNumber - Fights.get().getFightNum0) > li 20428164 (run) x Ahmed Alsomali 20428 164 (run) #2 x Pption: 1- NlewFlight at flight number: at flight passenger capacity (maximum) : light make more than one stop to its destination? ansver true or false: ght international? ansver true or false: in thread "main" java.lang. Runtime Exception: Uncompilable source code - variable flightlumber might not have been initialized ahmed. alsomali.pkg20428164.AhmedAlsomali20428164.main (AhmedAlsomali20428164.java:112) nmdh\AppData\Local\NetBeans\Cache\8.2\executor-snippess\run.xml:53: Java returned: 1
catch (Exception InputMismatch) { System.out.printin ("Please input an integer number"): System.out.printin ("Does the flight make more than one stop to its destination? answer true or false: ") : try ( transit - sc.nextBoolean (): catch (Exception InputMismatch) ( System.out.printin ("Please answer (true) or (false) "): System.out.printin ("Is the flight international? answer true or false: "): try ( international - sc.nextBoolean (): catch (Exception InputMismatch) ( System.out.printin ("Please answer (true) or (false) "): boolean FlightCheck - true: for (int i - 0; i< Flights.size (): i++) { if (flightNumber -- Flights.get (i).getFlightNum () ){ FlightCheck - false: if (FlightCheck - false) { System.out.printin ("Flight " + flightNumber + "already exists"): elsel Flight flight - new Flight (flightNumber, cap, transit, international): System.out.printin (Flights): g20428164.AhmedAlsomali20428 164> O main > while (option !- 9) > switch (option) > case 1: > for (nti - 0; i < Fights.size); i++) > if (fightNumber - Fights.get().getFightNum0) > li 20428164 (run) x Ahmed Alsomali 20428 164 (run) #2 x Pption: 1- NlewFlight at flight number: at flight passenger capacity (maximum) : light make more than one stop to its destination? ansver true or false: ght international? ansver true or false: in thread "main" java.lang. Runtime Exception: Uncompilable source code - variable flightlumber might not have been initialized ahmed. alsomali.pkg20428164.AhmedAlsomali20428164.main (AhmedAlsomali20428164.java:112) nmdh\AppData\Local\NetBeans\Cache\8.2\executor-snippess\run.xml:53: Java returned: 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
Related questions
Question
I'm working on a java program that takes input from user and creates flights (objects).
I'm trying to assign variables to user input, and use these variables as an argument for my object, but I keep getting an error that says I didn't initalize my variables (although I did + it should have the value of user input). Can someoene please tell me what I'm doing wrong?
Transcribed Image Text:82
cap = sc.nextInt ()
83
84
catch (Exception InputMismatch) {
System.out.println ("Please input an integer number");
85
86
}
87
System.out.println ("Does the flight make more than one stop to its destination? answer true or false: ");
88
try {
89
transit = sc.nextBoolean ():
90
91
catch (Exception InputMismatch) {
92
System.out.println ("Please answer (true) or (false) ");
93
94
System.out.println ("Is the flight international? answer true or false: ");
95
try {
96
international = sc.nextBoolean () ;
97
98
catch (Exception InputMismatch) {
99
System.out.println ("Please answer (true) or (false) ");
100
boolean FlightCheck = true;
for (int i = 0; i < Flights.size (); i++) {
if (flightNumber == Flights.get (i).getFlightNum () ) {
101
102
104
FlightCheck
false;
105
106
if (FlightCheck = false) {
System.out.println ("Flight " + flightNumber + "already exists");
109
110
else{
Flight flight = new Flight (flightNumber, cap, transit, international);
112
System.out.println (Flights);
O ahmed.alsomali.pkg20428164.AhmedAlsomali20428164 >
O main > while (option != 9) > switch (option)
case 1: > for (int i = 0; i < Flights.size(); i++) > if (flightNumber == Flights.get(0).getFlightNum0) >
Dutput x
A Ahmed Alsomali 20428164 (run) x Ahmed Alsomali 20428164 (run) #2 x
Select an option: 1- NewFlight
Please input flight number:
Please input flight passenger capacity (maximum) :
Does the flight make more than one stop to its destination? answer true or false:
false
Is the flight international? answer true or false:
false
Exception in thread "main" java.lang.RuntimeException: Uncompilable source code - variable flightNumber might not have been initialized
at ahmed.alsomali.pkg20428164.AhmedAlsomali20428164.main (AhmedAlsomali20428164.java:112)
C:\Users\ahmdh\AppData\Local\NetBeans\Cache\8.2\executor-snippets\run.xml:53: Java returned: 1
BUILD FAILED (total time:
8 seconds)
Abmed Alsomali 20428164 (run)
![public static void main (String [] args) {
ArrayList<Flight> Flights = new ArrayList<Flight>();
Scanner sc = new Scanner (System.in);
int option = 0;
while (option != 9) {
System.out.println ("Select an option: 1- NewFlight");
option = sc.nextInt () :
switch (option) {
case l:
int flightNumber, cap = 0; boolean transit, international = false;
System.out.println ("Please input flight number: ");
try {
flightNumber = sc.nextInt ();
catch (Exception InputMismatch) {
System.out.println ("Please input an integer number");
System.out.println ("Please input flight passenger capacity (maximum) : ");
try {
cap = sc.nextInt () ;
}
catch (Exception InputMismatch) {
System.out.println ("Please input an integer number");
System.out.println ("Does the flight make more than one stop to its destination? answer true or false: ");
try {
transit = sc.nextBoolean ();
}
catch (Exception InputMismatch) {
System.out.println ("Please answer (true) or (false) ");
System.out.println ("Is the flight international? answer true or false: ");
try {
international = sc.nextBoolean () ;
}
catch (Exception InputMismatch) {
System.out.println ("Please answer (true) or
(false) ");
boolean FlightCheck = true;
for (int i = 0; i < Flights.size (); i++) {](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F274ad608-8212-43be-a4da-26680d5ad513%2F436b486a-1f31-4de8-b16f-4946494164eb%2Frc3h1sn_processed.png&w=3840&q=75)
Transcribed Image Text:public static void main (String [] args) {
ArrayList<Flight> Flights = new ArrayList<Flight>();
Scanner sc = new Scanner (System.in);
int option = 0;
while (option != 9) {
System.out.println ("Select an option: 1- NewFlight");
option = sc.nextInt () :
switch (option) {
case l:
int flightNumber, cap = 0; boolean transit, international = false;
System.out.println ("Please input flight number: ");
try {
flightNumber = sc.nextInt ();
catch (Exception InputMismatch) {
System.out.println ("Please input an integer number");
System.out.println ("Please input flight passenger capacity (maximum) : ");
try {
cap = sc.nextInt () ;
}
catch (Exception InputMismatch) {
System.out.println ("Please input an integer number");
System.out.println ("Does the flight make more than one stop to its destination? answer true or false: ");
try {
transit = sc.nextBoolean ();
}
catch (Exception InputMismatch) {
System.out.println ("Please answer (true) or (false) ");
System.out.println ("Is the flight international? answer true or false: ");
try {
international = sc.nextBoolean () ;
}
catch (Exception InputMismatch) {
System.out.println ("Please answer (true) or
(false) ");
boolean FlightCheck = true;
for (int i = 0; i < Flights.size (); i++) {
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