DATA FILES in .NET framework

Generator QR Code in .NET framework DATA FILES

DATA FILES
Quick Response Code Recognizer In VS .NET
Using Barcode Control SDK for Visual Studio .NET Control to generate, create, read, scan barcode image in .NET framework applications.
QR Code 2d Barcode Creation In .NET
Using Barcode creator for VS .NET Control to generate, create QR image in Visual Studio .NET applications.
[CHAP. 9
Scan Quick Response Code In VS .NET
Using Barcode scanner for Visual Studio .NET Control to read, scan read, scan image in VS .NET applications.
Bar Code Encoder In .NET Framework
Using Barcode printer for .NET framework Control to generate, create barcode image in VS .NET applications.
9.30 Can a text editor or word processor be used to edit a random access data file 9.31 Describe a strategy for updating the information in a random access data file. Compare with the strategy used with a sequential data file (see Question 9.22). 9.32 What is the purpose of the Loc function What information is returned by this function 9.33 What is the purpose of the Seek function What information is returned by this function How does this function differ from the Loc function 9.34 How is the information within a binary file organized 9.35 How is the Get # statement used with a binary file How is this statement interpreted if the first byte read is not explicitly shown Compare with the answer to Question 9.26. 9.36 How is the Put # statement used with a binary file How is this statement interpreted if the first byte written is not explicitly shown Compare with the answer to Question 9.27.
Barcode Scanner In .NET Framework
Using Barcode recognizer for Visual Studio .NET Control to read, scan read, scan image in Visual Studio .NET applications.
QR-Code Encoder In Visual C#.NET
Using Barcode drawer for .NET Control to generate, create QR Code 2d barcode image in VS .NET applications.
Problems
Creating QR Code JIS X 0510 In VS .NET
Using Barcode encoder for ASP.NET Control to generate, create QR Code 2d barcode image in ASP.NET applications.
QR Code 2d Barcode Printer In Visual Basic .NET
Using Barcode generation for .NET Control to generate, create Quick Response Code image in Visual Studio .NET applications.
9.37 Describe the data file associated with each of the following statements. (a) Open "demo.dat" For Input As #3 (b) Open FileName For Output As #5 (c)
Encoding Bar Code In VS .NET
Using Barcode encoder for .NET Control to generate, create bar code image in .NET applications.
Code 128A Generation In .NET Framework
Using Barcode creation for VS .NET Control to generate, create Code 128 Code Set A image in .NET applications.
Open DataFile For Random As #2 Len = Len(RecName)
Painting GS1 DataBar Limited In .NET
Using Barcode generator for .NET Control to generate, create GS1 RSS image in .NET framework applications.
Make UPC - E1 In Visual Studio .NET
Using Barcode creator for Visual Studio .NET Control to generate, create UCC - 12 image in VS .NET applications.
(d) Open "customers.dat" For Append As #1 (e) 9.38
Reading Barcode In VS .NET
Using Barcode Control SDK for ASP.NET Control to generate, create, read, scan barcode image in ASP.NET applications.
Create Code 39 Full ASCII In Objective-C
Using Barcode maker for iPad Control to generate, create Code39 image in iPad applications.
Open "c:\myfiles\students.dat" For Binary As #2
Reading Bar Code In Java
Using Barcode scanner for Java Control to read, scan read, scan image in Java applications.
Creating Bar Code In Visual Studio .NET
Using Barcode generator for ASP.NET Control to generate, create bar code image in ASP.NET applications.
Write an Open statement for each of the following situations. (a) Open an existing sequential file called "students.dat" as an input file on data channel number 2. (b) Open a new sequential file called "grades.dat" as an output file on data channel number 3. (c) Open an existing sequential file whose name is given by FileName as an append file on data channel number 4.
EAN-13 Supplement 5 Generator In Java
Using Barcode creator for Java Control to generate, create GS1 - 13 image in Java applications.
Scan Data Matrix In Java
Using Barcode reader for Java Control to read, scan read, scan image in Java applications.
(d) Open a random access data file called "orders.dat" with a record size of 72 bytes on data channel number 1. (e) (f) 9.39 Open a random access data file whose name is given by FileName and whose record size is given by RecSize on data channel number 2. Open a binary file whose name is given by BinFile on data channel number 1.
UCC-128 Generator In None
Using Barcode encoder for Online Control to generate, create UCC-128 image in Online applications.
Code-128 Generation In Java
Using Barcode encoder for Eclipse BIRT Control to generate, create Code 128 image in BIRT reports applications.
Outline a Visual Basic program that will read the values of the variables Name, Salary, Taxes and NetPay from a record in the sequential (text) file oldrecs.dat; update the values as required; and write them to the sequential file newrecs.dat. Include a loop that causes the process to be repeated for every record in the file. Show the Open and Close statements and the skeletal structure of the loop. Do not show the details of the updates. Outline a Visual Basic program that will read the values of the variables Name, Salary, Taxes and NetPay from a record in the random access data file salaries.dat; update the values as required;
CHAP. 9]
DATA FILES
and write them back to the data file. Include a loop that causes the process to be repeated for every record in the file. Show the Open and Close statements and the skeletal structure of the loop, including the pointer positioning statements. Do not show the details of the updates. Compare with the outline written for Prob. 9.39. 9.41 Outline a Visual Basic program that will ask the user for a record number (i.e., a pointer value) and locate that record from the random access data file oldrecs.dat. Then read the values of the variables Name, Salary, Taxes and NetPay from the record and display them on the screen. Show the Open and Close statements and the main features, including the statements used to locate the record. Include the required event procedures as a part of your outline.
Programming Problems
9.42 Modify the Visual Basic program shown in Example 9.7 so that it utilizes random access files rather than sequential data files. Combine the Visual Basic programs shown in Examples 9.9 and 9.10 into one program that can either create a new random access data file or search an existing data file for the capital corresponding to a given state. Modify the Visual Basic program written for Problem 9.43 so that each record includes the name of a state, its population, and its capital. Include the ability to carry out either of the following operations. (a) Display both the population and the capital for a given state. (b) Display the state name and population for a given state capital. (Note that a binary search cannot be carried out for this option, since the state capitals are not arranged alphabetically.) 9.45 Write a Visual Basic program that will allow the state populations in the data file created for Problem 9.44 to be updated periodically. Modify the program written for Problem 9.44 so that it will read the data file and then do either of the following. (a) Sort the data file so that the states are listed in the order of decreasing populations (largest to smallest). (b) Sort the data file so that the state capitals rather than the state names are arranged alphabetically. Use a sort strategy similar to that described in Example 8.10 to carry out the sorts. 9.47 Write a single Visual Basic program that combines all of the features described in Problems 9.44, 9.45 and 9.46. Write a program that will read a random access data file containing baseball team records, as described in Example 9.11, and do any one of the following. (a) Update the team standings, as described in Example 9.11. (b) Sort the teams with respect to the percentage of games won (highest to lowest) and display the sorted list. Include complete information (i.e., name, games won, games lost and percentage of games won) for each team. Use a sort strategy similar to that described in Example 8.10.
Copyright © OnBarcode.com . All rights reserved.