A computer mouse is an input device for a computer that provides information onto the x and y coordinates of the icon being moved around by this mouse (referred to as a cursor) based off of the hand movements of the user moving the mouse.
Mouses also have three other button inputs. These are the left, right, and middle mouse buttons. The left button is typically used as the primary button, and is used to select, drag, open, and similar function. The right mouse button is usually intended for opening menus for additional options to be performed by the program being right-clicked on. The middle mouse button is actually a wheel that is used to move pages that extend beyond the boundaries of your screen up and down for easier viewing.
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Answer:
A. Hertz ----f amplitude.
Explanation:
The rules of physics confirm that frequency is measured in HERTZ and the amplitude is measured in Decibel. And hence, the correct option here is certainly the first option as it states that the frequency is measured in HERTZ and the amplitude is measured in Decibel. Hence, the first one is the correct choice for this question.
Answer:
red
Explanation:
public class CarTest {
public static void main(String[] argvs) {
//below line will create an object of CarTest class Object
CarTest carTest = new CarTest();
//This will call runDemo method
carTest.runDemo();
}
public void runDemo() {
//Below line will create an object of Car class with color blue and 4 wheel
Car c = new Car("blue", 4);
//Bellow Line will change the color from blue to red, see the logic writteen in chnageColor method definition
changeColor(c, "red");
//Below line will print the color as red
System.out.println(c.getColor());
}
public void changeColor(Car car, String newColor) {
//This line will set the color as passed color in the car object
car.setColor(newColor);
}
}
Answer:
Software is a set of instructions, data or programs used to operate computers and execute specific tasks. Opposite of hardware, which describes the physical aspects of a computer, software is a generic term used to refer to applications, scripts and programs that run on a device. Software can be thought of as the variable part of a computer, and hardware the invariable part.
Software is often divided into categories. Application software refers to user-downloaded programs that fulfill a want or need. Examples of applications include office suites, database programs, web browsers, word processors, software development tools, image editors and communication platforms.
Explanation:
Software is a set of instructions, data or programs used to operate computers and execute specific tasks. Opposite of hardware, which describes the physical aspects of a computer, software is a generic term used to refer to applications, scripts and programs that run on a device. Software can be thought of as the variable part of a computer, and hardware the invariable part.
Software is often divided into categories. Application software refers to user-downloaded programs that fulfill a want or need. Examples of applications include office suites, database programs, web browsers, word processors, software development tools, image editors and communication platforms.
Answer:
Explanation:
The program in question would create a new Scanner Object which asks the user for the Username first. It would then save this input into a temporary variable and compare it to the actual username in the database. Since the username is not case sensitive, we would use the toLowerCase() method on both the input and the database username so that they match even if the letters are not the same case structure. If both usernames match then we would move on to ask the user for the Password and compare it with the database password for that user. Since this one is case sensitive we would compare as is. Finally, if both Username and Password match we would print "Hello World" otherwise we would print "Login Failed."