Write code to take a String input from the user, then print the first and last letters of the string on one line. Sample run: Enter a string: surcharge se Hint - we saw in the lesson how to get the first letter of a string using the substring method. Think how you could use the .length() String method to find the index of the last character, and how you could use this index in the substring method to get the last character.

Answer:

C and B in that order

Explanation:

Answer:

You can use formulas to create systems on excel.

Explanation:

Answer:

The program in Java is as follows:

import java.util.Scanner;

public class Main{

public static void main(String[] args) {

 Scanner input = new Scanner(System.in);

 double n1, n2;

 n1 = input.nextDouble();

 n2 = input.nextDouble();

 double Max = Math.max(n1,n2);

 double Min = Math.min(n1,n2);

 System.out.println("Max: "+Max);

 System.out.println("Min: "+Min); }}

Explanation:

This declares the numbers

 double n1, n2;

This gets input for n1

 n1 = input.nextDouble();

This gets input for n2

 n2 = input.nextDouble();

This gets the max of both using the max function

 double Max = Math.max(n1,n2);

This gets the min of both using the min function

 double Min = Math.min(n1,n2);

This prints the max

 System.out.println("Max: "+Max);

This prints the min

 System.out.println("Min: "+Min);

Answer:

1977

Explanation:

Apple 2 was released in April 19th 1977

Answer:

print(5)

Explanation:

Passing an int argument into the method named print ;

print() ; Here, the print method has no argument as it is empty

print()+5; Here also, the print method has no argument and adding +5 is an invalid syntax.

print("5") ; Here, print takes in an argument, however, the argument is a string due to the fact that 5 is enclosed by quotation marks.

print(5) ; Here, the integer is 5 is passed to the print method.

Answer:

B.

Explanation:

The most likely reason for this would be that the account balances are represented using a fixed number of bits, resulting in round-off errors. Since all of the numbers being used are real numbers they would have a fixed 32 bits of data. When these values are multiplied or divided they can be irrational numbers that never end, and therefore are cut off in order to fit the available data. This would cause the numbers to be rounded and can lead to the answer being imprecise.

Answer:

Software

Explanation:

The software tells the hardware what to do and how to do it.

Answer: D. canonical form of a Boolean equation where the right-side expression is a sum-of-products

Explanation:

Sum-of-minterms form is refered to as the canonical form of a Boolean equation such that the right-side expression is the sum-of-products.

It should be noted that the minterms whose sum helps in defining the Boolean function will be the ones that give the 1's with regards to the functions in the truth table.

Answer:

which type of questions is this

Answer:maybe start a new page or try hitting delete

Explanation:

Answer:

A servomotor.

Explanation:

Because you can only open the window with the force given by the servo motor.I am not sure tho

Answer:

Color contrast is the difference in light between font (or anything in the foreground) and its background.

Explanation:

In web accessibility, how well one color stands out from another color determines whether or not most people will be able to read the information.

Contrast makes things look different and stand out

Explanation:

1. Run-time errors occur when the program is running.

2. Run-time errors cause the program to halt.

4. Run-time errors occur when a numeric value is expected but a text value is entered.

5. Run-time errors occur when a text value is expected but a numeric value is entered.

Answer:

There is a wide application of kinematics; it is also used in astrophysics. In mechanical engineering, robotics, and biomechanics, it is used to describe the motion of the system of the joint parts.

Answer:

The dimensions of information systems include organizations, management, and information technology. The key elements of an organization are its people, structure, business processes, politics, and culture. An organization coordinates work through a structured hierarchy and formal standard operating procedures.

Answer:

The correct answer is "0.73 A".

Explanation:

Given that:

Power,

P = 8.3 W

Voltage,

ΔV = 11.4 V

The current will be:

⇒  [tex]I = \frac{P}{\Delta V}[/tex]

On substituting the values, we get

⇒     [tex]=\frac{8.3}{11.4}[/tex]

⇒     [tex]=0.73 \ A[/tex]

Answer:

1. Hydrostatic pressure.

2. Pressure.

3. Equilibrium forces.

Explanation:

1. Hydrostatic pressure: pressure exerted by a stationary liquid. It is simply the pressure in a liquid such as water at a specific depth.

Mathematically, hydrostatic pressure is given by the formula;

[tex] H.P = rho * g * d [/tex]

Where:

2. Pressure: it is the force in a direction perpendicular to a given surface area. Thus, it's typically measured in Newton per meters (N/m²).

Mathematically, pressure is given by the formula;

[tex] Pressure = \frac {Force}{area} [/tex]

3. Equilibrium forces: a pair of forces whose resultant is zero. It is also referred to as balanced forces because the resultant of all the pair of forces acting on a body or system is at equilibrium (balanced).

Answer:

Explanation:

Assuming you have Windows 8 or 10 as the operating system, you would need to do the following. In the search input in the taskbar search for "Create a System Restore Point". In this window, navigate to the System Protection tab. Here, you need to click on the drive you want, we can do C first, and click on the button that says "configure". Here you want to turn on System Protection and set the disk space to 5%. Now click apply and ok and repeat for drive D.

Once that is done you will need to create a manual restore point by clicking the button that says create and giving it the name of your choice.

Answer:

B2:E6,,,,,,,,,,,,,,,,

Answer:

because the password being used is of high quality

Explanation:

Option C is the most preferable in terms of system security because the password being used is of high quality. Meaning that it contains lower case and capital case letters as well as numbers. It is also a random mix of all three and is not a common word or name. The length of the password is normal but could be longer for better safety. These things make it very difficult and time-consuming for a software program to guess the password, and nearly impossible for an individual to guess.

Answer:

The function in Python is as follows:

def MaxValue(userNum1, userNum2):

   if userNum2>userNum1:

       return userNum2

   else:

       return userNum1

Explanation:

This defines the function

def MaxValue(userNum1, userNum2):

This returns userNum2 if userNum2 is greater than userNum1

   if userNum2>userNum1:

       return userNum2

If otherwise, this returns userNum1

   else:

       return userNum1

Answer:

call centers benfit big in this field

Explanation:

Answer:

C. Social Engineering

Explanation:

Social engineering can be defined as an art of manipulating people, especially the vulnerable to divulge confidential information or performing actions that compromises their security.

Basically, it is a manipulative strategy or technique that involves the use of deceptive and malicious activities on unsuspecting victims in order to gain unauthorized access to their confidential or private information for fraud-related purposes. Some examples of social engineering attacks include quid pro quo, spear phishing, baiting, tailgating, water-holing, vishing, pretexting, phishing, etc.

Phishing is an attempt to obtain sensitive information such as usernames, passwords and credit card details or bank account details by disguising oneself as a trustworthy entity in an electronic communication usually over the internet.

Furthermore, phishing is a type of fraudulent or social engineering attack used to lure unsuspecting individuals to click on a link that looks like that of a genuine website and then taken to a fraudulent web site which asks for personal information.

In conclusion, social engineering being a form of cyber attack is not an advantage of a computer network.

Answer:

S -> LSR

S -> M

M -> YYY

Y -> c | g

L -> XX

X -> b | c | g

R -> ZZZ

Z -> a | b

Explanation:

This is a long time ago, but I think this does what you want.

Start symbol S expands to LSR and allows you to grow L and R on either side as much as you want. Ultimately S must be replaced by M. Then you have a pattern like LLLLLMRRRRR.

We can then further break down L into 2 times b, c or g, and similar for M and R.

Answer:

iphone is better but if u like it then ok

Explanation:

Define a method pyramidVolume with double parameters baseLength, baseWidth, and pyramidHeight, that returns as a double the volume of a pyramid with a rectangular base. Relevant geometry equations:

Volume = base area x height x 1/3

Base area = base length x base width.

(Watch out for integer division)

import java.util.Scanner;

public class CalcPyramidVolume {

   /* Your solution goes here */

   public static void main (String [] args) {

     System.out.println("Volume for 1.0, 1.0, 1.0 is: " + pyramidVolume(1.0, 1.0,   1.0));

     return;

    }

}

import java.util.Scanner;

public class CalcPyramidVolume {

   /* Your solution goes here */

   public static void main (String [] args) {

       System.out.println("Volume for 1.0, 1.0, 1.0 is: " + pyramidVolume(1.0, 1.0, 1.0));

       return;

   }

   //Begin method definition

   public static double pyramidVolume(double baseLength, double baseWidth, double pyramidHeight){

       //First, calculate the base area of the pyramid

       //store the result in a double variable

       double baseArea = baseLength * baseWidth;

       //Then, calculate the volume of the pyramid

       //using the base area and the base width

       double volume = 1 / 3.0 * baseArea * pyramidHeight;

       //return the volume

      return volume;

   }

}

Volume for 1.0, 1.0, 1.0 is: 0.3333333333333333

The code above contains comments explaining the important lines of the code. The output of the code has also been provided above.

The parts of the code that are worth noting are:

(i) The return type of the method pyramidVolume should be a double since calculations are done using double values. i.e the method header should be written as

public static double pyramidVolume(){

}

(ii) The method requires three(3) parameters of type double: baseLength, baseWidth and pyramidHeight. These should be included in the method. Therefore, the complete header definition should be:

public static double pyramidVolume(double baseLength, double baseWidth, double pyramidHeight){

}

(iii) The formula for calculating the volume of the pyramid should be:

volume = 1 / 3.0 * baseArea * baseWidth;

Rather than;

volume = 1 / 3 * baseArea * baseWidth;

This is because integer division yields integer result. If 1 / 3 is evaluated, the result will be 0 since the decimal part will be truncated thereby making the result of the volume = 1 / 3 * baseArea * baseWidth will be 0.

Therefore, the work around for that should be to write 1 / 3.0 or 1.0 / 3.0 or 1.0 / 3.

(iv) After the calculation, the result of volume should be returned by the method. This will enable a proper call by the main method for execution.