Java How to Program, Early Objects (11th Edition) (Deitel: How to Program)
11th Edition
ISBN: 9780134743356
Author: Paul J. Deitel, Harvey Deitel
Publisher: PEARSON
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Textbook Question
Chapter 2, Problem 11.1E
Which of the following Java statements contain variables whose values are modified?
- 1. int p = i + j + k + 7;
- 2. System.out.println("variables whose values are modified");
- 3. System.out.println("a = 5");
- 4. int value = input.nextInt();
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Language: JAVA
Fill in your code for the following program that takes two words as input from the keyboard, representing a user ID and a password, then the program does the following:
If the user ID and the password match “admin” and “open”, respectively, then output “Welcome”.
If the user ID matches “admin” and the password does not match “open”, output “Wrong password”.
If the password matches “open” and the user ID does not match “admin”, output “Wrong user ID”.
Otherwise, output “Sorry, wrong ID and password”.
import java.util.Scanner;
public class Login{
public static void main(String[] args){
Scanner scan = ____ Scanner(________);//instantiate a Scanner object
String userID = scan._________; // read the user ID
String password = scan.__________; // read the password
if(________________________________)
{
System.out.println("Welcome");
}
else if(___________________________)
{
System.out.println("Wrong password");
}
else…
Task: Loop, input, and variable review: objects not required.
Write a Java program that can make change for a vending machine. Your program
should take two numbers as input, one for the amount charged and one for the money
given. You can assume both amounts are less than $10, and that the user will give more
money than the amount due.
Use the following U.S. coins: dollar, quarter, dime, nickel, penny. The program displays
the number of each kind of coin to give back. Try to design your program so that it
returns the fewest number of coins possible.
Output of a sample program run:
You bought something worth $1.25.
You paid $2.10.
Your change is:
0 dollar coins
3 quarters
1 dimes
0 nickels
0 pennies
Exercise 1 : Write a Java program that computes the sum of even numbers less than or equal to n where n is given by the user (without nesting the control statements).
Exercise 2 : Write a Java application that computes the sum of even numbers and the product of odd numbers that are in the range [a, b] where a and b are given by the user (without nesting the control statements, to do so you have to use 2 separate loops).
Chapter 2 Solutions
Java How to Program, Early Objects (11th Edition) (Deitel: How to Program)
Ch. 2 - Fill in the blanks in each of the following...Ch. 2 - Fill in the blanks in each of the following...Ch. 2 - Fill in the blanks in each of the following...Ch. 2 - Fill in the blanks in each of the following...Ch. 2 - Fill in the blanks in each of the following...Ch. 2 - Fill in the blanks in each of the following...Ch. 2 - Prob. 1.7SRECh. 2 - State whether each of the following is true or...Ch. 2 - State whether each of the following is true or...Ch. 2 - State whether each of the following is true or...
Ch. 2 - State whether each of the following is true or...Ch. 2 - State whether each of the following is true or...Ch. 2 - Prob. 2.6SRECh. 2 - Write statements to accomplish each of the...Ch. 2 - Write statements to accomplish each of the...Ch. 2 - Write statements to accomplish each of the...Ch. 2 - Prob. 3.4SRECh. 2 - Prob. 3.5SRECh. 2 - Write statements to accomplish each of the...Ch. 2 - Prob. 4.1SRECh. 2 - Identify and correct the errors in each of the...Ch. 2 - Write declarations, statements or comments that...Ch. 2 - Write declarations, statements or comments that...Ch. 2 - Write declarations, statements or comments that...Ch. 2 - Write declarations, statements or comments that...Ch. 2 - Write declarations, statements or comments that...Ch. 2 - Write declarations, statements or comments that...Ch. 2 - Write declarations, statements or comments that...Ch. 2 - Write declarations, statements or comments that...Ch. 2 - Write declarations, statements or comments that...Ch. 2 - Write declarations, statements or comments that...Ch. 2 - Using the statements you wrote in Exercise 2.5,...Ch. 2 - Fill in the blanks in each of the following...Ch. 2 - Fill in the blanks in each of the following...Ch. 2 - Fill in the blanks in each of the following...Ch. 2 - Prob. 1.4ECh. 2 - Fill in the blanks in each of the following...Ch. 2 - Write Java statements that accomplish each of the...Ch. 2 - Write Java statements that accomplish each of the...Ch. 2 - Write Java statements that accomplish each of the...Ch. 2 - Prob. 3.1ECh. 2 - State whether each of the following is true or...Ch. 2 - State whether each of the following is true or...Ch. 2 - State whether each of the following is true or...Ch. 2 - Assuming that x = 2 and y = 3, what does each of...Ch. 2 - Assuming that x = 2 and y = 3, what does each of...Ch. 2 - Assuming that x = 2 and y = 3, what does each of...Ch. 2 - Prob. 4.4ECh. 2 - Prob. 5.1ECh. 2 - Which of the following Java statements contain...Ch. 2 - Prob. 5.3ECh. 2 - Which of the following Java statements contain...Ch. 2 - Given that y=ax3+7, which of the following are...Ch. 2 - Given that y=ax3+7, which of the following are...Ch. 2 - Given that y=ax3+7, which of the following are...Ch. 2 - Given that y=ax3+7, which of the following are...Ch. 2 - Given that y=ax3+7, which of the following are...Ch. 2 - Given that y=ax3+7, which of the following are...Ch. 2 - State the order of evaluation of the operators in...Ch. 2 - Prob. 7.2ECh. 2 - State the order of evaluation of the operators in...Ch. 2 - Display the message "Enter an integer: ", leaving...Ch. 2 - Assign the product of variables b and c to the int...Ch. 2 - Use a comment to state that a program performs a...Ch. 2 - Prob. 9.1ECh. 2 - (Comparing Integers) Write an application that...Ch. 2 - Which of the following Java statements contain...Ch. 2 - Given that y = ax3 + 7, which of the following are...Ch. 2 - State the order of evaluation of the operators in...Ch. 2 - What does the following code print?...Ch. 2 - What does the following code print?...Ch. 2 - What does the following code print?...Ch. 2 - What does the following code print?...Ch. 2 - (Largest and Smallest Integers) Write an...Ch. 2 - (Odd or Even) Write an application that reads an...Ch. 2 - Write an application that reads two integers,...Ch. 2 - Write an application that displays a checkerboard...Ch. 2 - Circumference and Area of a Circle) Heres a peek...Ch. 2 - (Integer Value of a Character) Heres another peek...Ch. 2 - (Separating the Digits in an Integer) Write an...Ch. 2 - Prob. 25.1ECh. 2 - Prob. 26.1ECh. 2 - (Body Mass Index Calculator) We introduced the...Ch. 2 - (World Population Growth Calculator) Search the...
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