public static void main(String[] args) {
Computer pravetz = new Computer();
pravetz.year = 1986;
pravetz.price = 980.90;
pravetz.hardDiskMemory = 16;
pravetz.freeMemory = 13;
pravetz.operationSystem = "MS DOS";
pravetz.isNotebook = false;
Computer asus = new Computer();
asus.year = 2015;
asus.price = 3200;
asus.hardDiskMemory = 1_024_000;
asus.freeMemory = 512_000;
asus.operationSystem = "Windows 7";
asus.isNotebook = true;
pravetz.changeOperationSystem("Windows 3.11");
asus.useMemory(100);
System.out.println("Year: " + pravetz.year);
System.out.println("Price: " + pravetz.price + " USD.");
System.out.println("HDD memory: " + pravetz.hardDiskMemory + " mb");
System.out.println("HDD free memory: " + pravetz.freeMemory);
System.out.println("Operation System: " + pravetz.operationSystem);
System.out.println(
(pravetz.isNotebook) ? "The computer is a notebook." : "The computer is not a notebook.");
System.out.println();
System.out.println("Year: " + asus.year);
System.out.println("Price: " + asus.price + " USD.");
System.out.println("HDD memory: " + asus.hardDiskMemory + " mb");
System.out.println("HDD free memory: " + asus.freeMemory);
System.out.println("Operation System: " + asus.operationSystem);
System.out.println(
(asus.isNotebook) ? "The computer is a notebook." : "The computer is not a notebook.");
}
