Правильно ли перенос синхронный метод
09.02.2022, 00:27. Показов 342. Ответов 0
мне нужно перенести синхронный метод распределения пассажиров в класс Bus
Как было:
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| import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
public class loop {
public static void main(String[] args) {
Family fam1 = new Family("aa1", "Kalush", 1);
Family fam2 = new Family("bb1", "Kosiv", 2);
Family fam3 = new Family("cc1", "Galych", 3);
Family fam4 = new Family("dd1", "Kolomiya", 4);
Family fam5 = new Family("aa2", "Galych", 1);
Family fam6 = new Family("bb2", "Kolomiya", 2);
Family fam7 = new Family("cc2", "Kosiv", 3);
Family fam8 = new Family("dd2", "Kosiv", 4);
Family fam9 = new Family("aa3", "Galych", 1);
Family fam10 = new Family("bb3", "Galych", 2);
Family fam11 = new Family("cc3", "Galych", 3);
Family fam12 = new Family("dd3", "Galych", 4);
Family fam13 = new Family("aa4", "Kolomiya", 1);
Family fam14 = new Family("bb4", "Kolomiya", 2);
Family fam15 = new Family("cc4", "Kolomiya", 3);
Family fam16 = new Family("dd4", "Kolomiya", 4);
Family fam110 = new Family("aa12", "Kalush", 1);
Family fam21 = new Family("bb12", "Kosiv", 2);
Family fam31 = new Family("cc12", "Galych", 3);
Family fam41 = new Family("dd12", "Kolomiya", 4);
Family fam51 = new Family("aa22", "Galych", 1);
Family fam61 = new Family("bb22", "Kolomiya", 2);
Family fam71 = new Family("cc22", "Kosiv", 3);
Family fam81 = new Family("dd22", "Kosiv", 4);
Family fam91 = new Family("aa32", "Galych", 1);
Family fam101 = new Family("bb32", "Galych", 2);
Family fam111 = new Family("cc32", "Galych", 3);
Family fam121 = new Family("dd32", "Galych", 4);
Family fam131 = new Family("aa42", "Kolomiya", 1);
Family fam141 = new Family("bb42", "Kolomiya", 2);
Family fam151 = new Family("cc42", "Kolomiya", 3);
Family fam161 = new Family("dd42", "Kolomiya", 4);
List<Family> list1 = new ArrayList<>(Arrays.asList(fam1, fam2, fam3, fam4, fam5, fam6, fam7, fam8, fam9, fam10, fam11, fam12, fam13, fam14, fam15, fam16));
List<Family> list2 = new ArrayList<>(Arrays.asList(fam110, fam21, fam31, fam41,
fam51, fam61, fam71, fam81, fam91, fam101, fam111, fam121, fam131,
fam141, fam151, fam161));
Bus b1 = new Bus(1, 6, "Kalush");
Bus b2 = new Bus(2, 7, "Galych");
Bus b3 = new Bus(3, 8, "Kolomiya");
Bus b4 = new Bus(4, 7, "Kosiv");
Bus b5 = new Bus(5, 6, "Kalush");
Bus b6 = new Bus(6, 7, "Galych");
List<Bus> buses = new ArrayList<>(Arrays.asList(b1, b2, b3, b4, b5, b6));
Plane plane1 = new Plane(1, buses, list1);
Plane plane2 = new Plane(2, buses, list2);
plane1.start();
plane2.start();
}
}
class Family {
String name;
String travelTo;
int count;
boolean isSit = false;
public Family(String name, String travelTo, int count) {
this.name = name;
this.travelTo = travelTo;
this.count = count;
}
public void go(List<Bus> buses, int planeID) {
for (Bus bus : buses) {
synchronized (bus) {
if (!this.isSit) {
if (this.travelTo.equals(bus.driveTo) && this.count <= bus.passengersCount) {
bus.passengersCount -= this.count;
try {
Thread.sleep(10);
} catch (Exception e) {
}
bus.families.add(this.name + " - > from plane № " + planeID);
this.isSit = true;
if (bus.passengersCount == 0) {
System.out.println("-------------------------------------------------------" +
"\nBus № " + bus.id + " is full of families: \n" + bus.families + "\nand ready to go");
}
}
}
}
}
}
}
class Plane extends Thread {
List<Family> families;
int id;
List<Bus> buses;
public Plane(int id, List<Bus> buses, List<Family> families) {
this.buses = buses;
this.families = families;
this.id = id;
}
@Override
public void run() {
for (Family fam : families) {
fam.go(buses, this.id);
}
}
}
class Bus {
int id;
int passengersCount;
String driveTo;
List<String> families = new ArrayList<>();
public Bus(int id, int passengersCount, String driveTo) {
this.id = id;
this.passengersCount = passengersCount;
this.driveTo = driveTo;
}
} |
|
как изменил:
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| import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
public class loop {
public static void main(String[] args) {
Family fam1 = new Family("aa1", "Kalush", 1);
Family fam2 = new Family("bb1", "Kosiv", 2);
Family fam3 = new Family("cc1", "Galych", 3);
Family fam4 = new Family("dd1", "Kolomiya", 4);
Family fam5 = new Family("aa2", "Galych", 1);
Family fam6 = new Family("bb2", "Kolomiya", 2);
Family fam7 = new Family("cc2", "Kosiv", 3);
Family fam8 = new Family("dd2", "Kosiv", 4);
Family fam9 = new Family("aa3", "Galych", 1);
Family fam10 = new Family("bb3", "Galych", 2);
Family fam11 = new Family("cc3", "Galych", 3);
Family fam12 = new Family("dd3", "Galych", 4);
Family fam13 = new Family("aa4", "Kolomiya", 1);
Family fam14 = new Family("bb4", "Kolomiya", 2);
Family fam15 = new Family("cc4", "Kolomiya", 3);
Family fam16 = new Family("dd4", "Kolomiya", 4);
Family fam110 = new Family("aa12", "Kalush", 1);
Family fam21 = new Family("bb12", "Kosiv", 2);
Family fam31 = new Family("cc12", "Galych", 3);
Family fam41 = new Family("dd12", "Kolomiya", 4);
Family fam51 = new Family("aa22", "Galych", 1);
Family fam61 = new Family("bb22", "Kolomiya", 2);
Family fam71 = new Family("cc22", "Kosiv", 3);
Family fam81 = new Family("dd22", "Kosiv", 4);
Family fam91 = new Family("aa32", "Galych", 1);
Family fam101 = new Family("bb32", "Galych", 2);
Family fam111 = new Family("cc32", "Galych", 3);
Family fam121 = new Family("dd32", "Galych", 4);
Family fam131 = new Family("aa42", "Kolomiya", 1);
Family fam141 = new Family("bb42", "Kolomiya", 2);
Family fam151 = new Family("cc42", "Kolomiya", 3);
Family fam161 = new Family("dd42", "Kolomiya", 4);
List<Family> list1 = new ArrayList<>(Arrays.asList(fam1, fam2, fam3, fam4, fam5, fam6, fam7, fam8, fam9, fam10, fam11, fam12, fam13, fam14, fam15, fam16));
List<Family> list2 = new ArrayList<>(Arrays.asList(fam110, fam21, fam31, fam41,
fam51, fam61, fam71, fam81, fam91, fam101, fam111, fam121, fam131,
fam141, fam151, fam161));
Bus b1 = new Bus(1, 6, "Kalush");
Bus b2 = new Bus(2, 7, "Galych");
Bus b3 = new Bus(3, 8, "Kolomiya");
Bus b4 = new Bus(4, 7, "Kosiv");
Bus b5 = new Bus(5, 6, "Kalush");
Bus b6 = new Bus(6, 7, "Galych");
List<Bus> buses = new ArrayList<>(Arrays.asList(b1, b2, b3, b4, b5, b6));
Plane plane1 = new Plane(1, buses, list1);
Plane plane2 = new Plane(2, buses, list2);
plane1.start();
plane2.start();
}
}
class Family {
String name;
String travelTo;
int count;
boolean isSit = false;
public Family(String name, String travelTo, int count) {
this.name = name;
this.travelTo = travelTo;
this.count = count;
}
}
class Plane extends Thread {
List<Family> families;
int id;
List<Bus> buses;
public Plane(int id, List<Bus> buses, List<Family> families) {
this.buses = buses;
this.families = families;
this.id = id;
}
@Override
public void run() {
for (Bus buse: buses) {
for (Family family: families){
buse.go(buses, this.id, family);
}
}
}
}
class Bus {
int id;
int passengersCount;
String driveTo;
List<String> families = new ArrayList<>();
public Bus(int id, int passengersCount, String driveTo) {
this.id = id;
this.passengersCount = passengersCount;
this.driveTo = driveTo;
}
public void go(List<Bus> buses, int planeID, Family family) {
for (Bus bus : buses) {
synchronized (this) {
if (!family.isSit) {
if (family.travelTo.equals(bus.driveTo) && family.count <= bus.passengersCount) {
bus.passengersCount -= family.count;
try {
Thread.sleep(10);
} catch (Exception e) {
}
bus.families.add(family.name + " - > from plane № " + planeID);
family.isSit = true;
if (bus.passengersCount == 0) {
System.out.println("-------------------------------------------------------" +
"\nBus № " + bus.id + " is full of families: \n" + bus.families + "\nand ready to go");
}
}
}
}
}
}
} |
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