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Програмування мовою Java
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(Java)
(Java)
class A {
...
}
class B extends A {
...
}
class C extends B {
...
}
public class MyClass {
public static void main (String args []) {
A x1 = new A ();
B x2 = new B ();
C x3 = new C ();
...
}
}
public static void main (String [] args) {
int a [] = {1, 2, 3 };
int b [] = (int []) a.clone ();
a [0] = 0;
System.out.print (b [0]);
}
}
(Java)
public class Vehicle {
public static void main (String [] args) {
Vehicle [] v = new Car [] {new Car () };
...
}
public void setVehicles (Vehicle c []) {
c [0] = new Vehicle ();
}
public void setVehicles2 (Vehicle c []) {
if (c [0] instanceof Vehicle) {
c [0] = new Car ();
}
}
public void setVehicles3 (Vehicle c []) {
if (c [0] instanceof Car) {
c [0] = new Vehicle ();
}
}
}
class Car extends Vehicle { }
(Java)
while (i <6) {
try {
System.out.print (42 / a);
}
catch (ArithmeticException e) {
System.out.print (42/2);
}
a - = 7;
i ++;
}
(Java)
(Java)
Які класи служать для подання примітивних значень у вигляді об'єктів? (Java)