// CardLayout.java This program displays a customer's personal information in a business card public class CardLayout { public static void main(String[] args) { int count; // count is a counter for printing "*" 50 times // Printing spaces in the top System.out.println("\n\n\n\n\n "); System.out.print("\t"); // Printing first line of the design for ( count=1 ; count<50; ++count) System.out.print("*"); // Printing the information System.out.println(" "); System.out.println("\t*\t\t\t\t\t\t*"); // using "\t" for printing 7 spaces System.out.println("\t*\t\t\t\t\t\t*"); System.out.println("\t*\t\t================\t\t*"); System.out.println("\t*\t\tBhfjhfkfkjkgkjkj\t\t*"); System.out.println("\t*\t\t================\t\t*"); System.out.println("\t*\t Home Tel. [phone]\t\t*"); System.out.println("\t*\t Work Tel. [phone]\t\t*"); System.out.println("\t*\t\t\t\t\t\t*"); System.out.println("\t*\t\t\t\t\t\t*"); System.out.println("\t*\t\t\t\t\t\t*"); System.out.println("\t*\t\t\t\t\t\t*"); System.out.println("\t* jkdfhjkdfhjkdfkjdfkgkdjf\t\t\t*"); System.out.println("\t* Wangsa Maju, Section 10\t\t\t*"); System.out.println("\t* 53300 Kuala Lumpur\t\t\t\t*"); System.out.println("\t*\t\t\t\t\t\t*"); System.out.print("\t"); for (count=1 ; count<50; ++count) System.out.print("*"); System.out.println("\n\n\n\n\n "); } }
Question 1 The constant percentage method of computing depreciation of an asset is based on the assumption that the depreciation charge at the end of each year is a fixed percentage of the book value of the asset at the beginning of the year. This assumption leads to the following relationship:
S = C (1 - d ) n
where C = original cost of asset d = depreciation rate per year n = number of years S = book value at the end of n years Write a program to compute the number of years of useful life of an asset given the original cost, depreciation rate, and book value at the end of its useful life. As input, the program is to read the data from the keyboard. Prompt the user to enter the data in the following way: Enter the original cost and depreciation rate: .......... Enter the book value at the end of the useful life of an asset: ......... Print the result to the screen as follows: The useful life of the asset is: .... Years Question 2 Use the statement cout<<"*"; and loops and if control structures as needed to print the form of stars: ********** * * * **** * * * * * * **** * * * ********** Question 3
Create a base class named Book. Data fields include title and author; functions include those that can set and display the fields. Derive two classes from the Book class; Fiction, which also contains a numeric grade reading level, and NonFiction, which contains a variable to hold the number of pages. The functions that set and display data fields values for the subclasses should call the appropriate parent class functions to set and display the common fields, and include specific code pertaining to the new subclass fields. Write a main() function that demonstrates the use of the classes and their functions. Question 4 Create a Painting class that holds the painting title, artist name, and value. All Paintings are valued at RM400 unless they are FamousPaintings. FamousPainting The subclass overrides the Painting value and sets each Painting's value to RM25000. Write a main() function that declares an array of 10 Painting objects. Prompt the user to enter the title and artist for each of the 10 Paintings. Consider the Painting to be a FamousPainting, if the artist is one the following: Degas, Monet, Picasso, or Rembrandt. Display the 10 Paintings. Question 5 Glad To Meet You is a company that designs and prints personal business cards. The company has asked you to write a Java application to display the layout of the information in a typical business card order. Data items in a typical business card include the customer's name, address, city, state, postcode, home phone number, and work phone number. Write, compile and test a Java class that displays these data items in an attractive layout on the console screen, using your own name and other personal information. Be certain to include appropriate comments in your class. Save the class as CardLayout.java in the Chapter01 folder on your disk. Question 6 Travel Tickets Company sells tickets for airlines, tours, and other travel related services. Because ticket agents frequently mistype long ticket
numbers, Travel Tickets has asked you to write an application that will indicate if a ticket number entry is invalid. The class displays an input dialog box that prompts a ticket agent to enter a six digit ticket number. Ticket numbers are designed so that if you drop the last digit of the number, then divide the number by 7, the remainder of the division will be identical to the last dropped digit. This process is illustrated in the following example: Step 1 Step 2 Step 3 Step 4 remainder Step 5 Enter the ticket number, for example 123454 Remove the last digit, leaving 12345 Determine the remainder when the ticket number is divided by 7. In this case, 12345 divided by 7 leaves a remainder of 4. Assign the Boolean value of the comparison between the and the digit dropped from the ticket number. Display the result true or false in a message box.
Test the application with these ticket numbers: 123454, 147103, and 154123. Save the case as TicketNumber.java in the Chapter2 folder on your disk. 1) get square root of one number #include<iostream.h> #include<math.h> void main() { int x; rootsq r; cout<<"Enter x.."; r=sqrt(x); cout<<r; } 2) get the answer of this equation f(x)=x*2 + 2x + 1 Where x can be any number #include<iostream.h> void main()
{ int f; int x; cout<<"Enter x.."; cin>>x; f=x*2 + 2*x + 1; cout<<"f(x) = "<<f; Q1- get square root of one number
Q2- get the answer of this equation f(x)=x*2 + 2x + 1 WHERE x CAN BE ANY NUMBER
1) sqrt(64); 2) #include <stdio.h> int main() { int x = 0; printf("Enter A number : "); scanf("%i",&x); printf("f(x) = %i",(x * 2) + (2 * 0x) + 1); return 0; } #include <iostream.h> void main() { int x; int f;{ f(x)} cout<< "enter the value of x";{ } cin>>x; { x} f=(x*x)+(2*x)+1 cout <<"write"<<x<<"can be any number;
}
#include<iostream.h> : #include<math.h> void main() { int x=4;float r; r=sqrt(x); cout<<r; } : #include<iostream.h> : void main() { int f; int x; cout<<"Enter x.."; cin>>x; f=x*2 + 2*x + 1; cout<<"f(x) = "<<f; }