Answer:
Commands: commands are also known as "programs" and the program is a set of rules that performs a specific task which is executed by a computer.
Unix is an operating system. that supports multi-tasking and multi-user functionality. Unix is most widely used in all forms of computing systems such as desktop, laptop, and servers. It provides a Graphical user interface similar to windows.
The Unix operating system there are various commands. The list of five Unix commands can be given as:
1) cal
2) date
3) banner
4) who
5) whoami
1)cal:
The cal command stands for calender. It displays the date.
Syntax:
$ cal
or
$ cal [[month] year]
Example:
$ cal 10 2019
2)date:
The date command stands for date and time. It displays the system date and time.
Syntax:
$date
or
$ date[+format]
Example:
$ date +%d/%m/%y
3) banner
The banner command stands for display the text in to a large size.
Syntax:
$banner message
Example:
$banner Unix
4) who
The who command stands for display the list of users currently logged in.
Syntax:
$who
or
$who [option] … [file][arg1]
Example:
$who
5) whoami
The whoami command stands for display the user id of the currently logged-in user.
Syntax:
$whoami
Example:
$whoami
Explanation:
1)cal command display the current month and year.
2)date command display system date and time.
3)banner command display text in large size.
4)who command display the user name who currently login.
5)whoami command display user id.
Answer:
no I dont where is that at
Culture identifies who you are, what you value, and how you act.
Answer:
Static variables are the variables decaraed with keyword static, static variables must be deacraled inside the class body, means we can not declare a static variable inside a method or consttructor, static variable belongs to class, for a class only one copy is created for static variable and used by all the objects/instances.
Static variable can access with class name like
X.i
Static method are the methods defined with static keyword, static method are also part of a class, we can access static meethod using class name like
X.printI()
Explanation:
class X
{
//to create a static variable we need use static keyword with variable name like
public static int i;
// to create a static method we need to use static keyword while defining a method like
public static void printHello() {
System.out.println("Hello");
}
/*
* A non static method can access static variable of a class there is no issue
* with that we can use a static variable in a non static method like
*/
public void printI() {
System.out.println(i);
}
/*
* As long as the class exist in JVM static variables will be there, as static
* variable belong to class not with the instance,
* it does not matters if there are instance exist or not
*/
}
Answer: 1)System Palette
Explanation: System palette is kind of palette found in the system which contain the color values that is used by the display.This palette is also drawing of the devices and applications.But the application don't get the direct access to the system palette rather logical palette permits it.
They work on the basis of the properties carried from the Back color and Fore color.Other palettes mention in the option is incorrect because these palettes don't work for the operating system's display .Thus the correct option is option(1).
