/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 18 A variable must be __________ be... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 1: Problem 18

A variable must be __________ before it can be used in a program.

Short Answer

Expert verified
Answer: Initialization

Step by step solution

01

Identify the concept related to variable usage

Before a variable can be used in a program, it has to go through a specific process which is crucial to avoid errors or unexpected results in the program while it executes.
02

Recall the process that a variable must undergo before it can be used

The process that a variable must go through is called "initialization". Initialization means assigning an initial value to a variable, before using it in the program.
03

Complete the exercise by filling in the blank with the correct answer

Given the explanation of the concept in the previous steps, we can now complete the statement given in the exercise: "A variable must be __initialized__ before it can be used in a program."

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

A program is a set of ______.

The rules that must be followed when constructing a program are called __________.

Are programs expressed as English statements. What would each display on the screen if they were actual programs? The variable x starts with the value 0. The variable y starts with the value 5. Add 1 to x. Add 1 to y. Add x and y, and store the result in y. Display the value in y on the screen.

The variable a starts with the value 1. The variable b starts with the value 10. The variable c starts with the value 100. The variable x starts with the value 0. Store the value of c times 3 in x. Add the value of b times 6 to the value already in x. Add the value of a times 5 to the value already in x. Display the value in x on the screen.

Available Credit Design a hierarchy chart for a program that calculates a customer鈥檚 available credit. The program should carry out the following steps: 1\. Display the message 鈥淓nter the customer鈥檚 maximum credit.鈥� 2\. Wait for the user to enter the customer鈥檚 maximum credit. 3\. Display the message 鈥淓nter the amount of credit used by the customer.鈥� 4\. Wait for the user to enter the customer鈥檚 credit used. 5\. Subtract the used credit from the maximum credit to get the customer鈥檚 available credit. 6\. Display a message that shows the customer鈥檚 available credit.
See all solutions

Recommended explanations on Computer Science Textbooks

Big Data

Read Explanation

Computer Programming

Read Explanation

Databases

Read Explanation

Blockchain Technology

Read Explanation

Data Representation in Computer Science

Read Explanation

Problem Solving Techniques

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.