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tester [92]
3 years ago
14

You can set a ________, which is automatically displayed in a field unless the user enters something different.

Computers and Technology
1 answer:
Wittaler [7]3 years ago
6 0

Answer:

Place holder

Explanation:

In computer programming, placeholder is a word, character or series of characters that is used to take up the space until the time when the space is actually needed. It is widely used in the sign up or login forms for web and mobile applications. For example, First Name, Last Name etc.

A programmer might have an idea that he will require this number of characters or values but he don't knows what the input will be, that’s why he uses the place holder.

Hope it helps!

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Functions of barriers include (mark all that apply): A. Define boundaries B. Design layout C. Deny access D. Delay access
gayaneshka [121]

Answer:

A. Define boundaries

C. Deny access

D. Delay access

Explanation:

A barrier is a material or structure used to prevent or block access. Barriers can either be natural or structural and are used for many purposes usually for security reasons. The following are functions of barriers either natural or structural:

  1. Define areas of boundaries
  2. Delay or slow access. Example is the use of speed bumps to slow down vehicles.
  3. Provide access to entrances such as the use of gates
  4. Deny access to unauthorized personnel and allowing authorized personnel.
4 0
3 years ago
Write a program that asks the user to input a set of floating-point values. When the user enters a value that is not a number, g
Lady_Fox [76]

Answer:

Check the explanation

Explanation:

// include the necessary packages

import java.io.*;

import java.util.*;

// Declare a class

public class DataReader

{

// Start the main method.

public static void main(String[] args)

{

// create the object of scanner class.

Scanner scan = new Scanner(System.in);

// Declare variables.

boolean done = false;

boolean done1 = false;

float sum = 0;

double v;

int count = 0;

// start the while loop

while (!done1)

{

// start the do while loop

do

{

// prompt the user to enter the value.

System.out.println("Value:");

// start the try block

try

{

// input number

v = scan.nextDouble();

// calculate the sum

sum = (float) (sum + v);

}

// start the catch block

catch (Exception nfe)

{

// input a character variable(\n)

String ch = scan.nextLine();

// display the statement.

System.out.println(

"Input Error. Try again.");

// count the value.

count++;

break;

}

}

// end do while loop

while (!done);

// Check whether the value of count

// greater than 2 or not.

if (count >= 2)

{

// display the statement on console.

System.out.println("Sum: " + sum);

done1 = true;

}

}

}

}

Sample Output:

Value:

12

Value:

12

Value:

ten

Input Error. Try again.

Value:

5

Value:

nine

Input Error. Try again.

Sum: 29.0

3 0
3 years ago
Read 2 more answers
What is the output of the code? (CHECK IMAGE)
PIT_PIT [208]

Answer:

689

Explanation:

8 0
2 years ago
Write the following function without using the C++ string class or any functions in the standard library, including strlen(). Yo
dolphi86 [110]

Answer:

The function in C++ is as follows

int chkInd(string str1, string str2){    

int lenstr1=0;

while(str1[lenstr1] != '\0'){  lenstr1++;  }

int index = 0; int retIndex=0;

for(int i=lenstr1-1;i>=0; i--){

   while (str2[index] != '\0'){

       if (str1[i] == str2[index]){

           retIndex=1;

           break;         }

       else{   retIndex=0;      }

  index++;    }

  if (retIndex == 0){   return i;   }else{return -1;}}

}

Explanation:

This defines the function

int chkInd(string str1, string str2){    

First, the length of str1 is initialized to 0

int lenstr1=0;

The following loop then calculates the length of str1

while(str1[lenstr1] != '\0'){  lenstr1++;  }

This initializes the current index and the returned index to 0

int index = 0; int retIndex=0;

This iterates through str1

for(int i=lenstr1-1;i>=0; i--){

This loop is repeated while there are characters in str2

   while (str2[index] != '\0'){

If current element of str2 and str1 are the same

       if (str1[i] == str2[index]){

Set the returned index to 1

           retIndex=1;

Then exit the loop

           break;         }

If otherwise, set the returned index to 0

       else{   retIndex=0;      }

Increase index by 1

  index++;    }

This returns the calculated returned index; if no matching is found, it returns -1

  if (retIndex == 0){   return i;   }else{return -1;}}

}

4 0
3 years ago
Javascript is an object-based programming language that involves working with the properties and methods associated with objects
dimulka [17.4K]

Answer:

True

Explanation:

You can set variables and make method functions.

4 0
2 years ago
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