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  • encryption of a single character

    - by SystemicPlural
    What is the minimum number of bits needed to represent a single character of encrypted text. eg, if I wanted to encrypt the letter 'a', how many bits would I require. (assume there are many singly encrypted characters using the same key.) Am I right in thinking that it would be the size of the key. eg 256 bits?

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  • iPhone: custom cell is overlaping with each other

    - by Nandakishore
    hi i am working on Table view, my Table view first custom cell is over ride other cell when Scrolling this is my code import UIKit/UIKit.h @interface MyTweetViewController : UIViewController { IBOutlet UITableView *tweetsTableView; NSMutableArray *tweetArray; } @property (nonatomic, retain) IBOutlet UITableView *tweetsTableView; @end import "MyTweetViewController.h" @implementation MyTweetViewController @synthesize tweetsTableView; (void)viewDidLoad { tweetArray = [[NSMutableArray alloc] init]; [tweetsTableView setBackgroundColor:[UIColor clearColor]]; [super viewDidLoad]; } pragma mark - pragma mark Table view data source (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { // Return the number of sections. return 1; } (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { // Return the number of rows in the section. return [tweetArray count]; } (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath { return 80; } - (void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath { [cell setBackgroundColor:[UIColor clearColor]]; } //Customize the appearance of table view cells. - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *identifier = @"Cell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:identifier]; if(!cell) { cell = [[UITableViewCell alloc] initWithStyle:UITableViewStyleGrouped reuseIdentifier:identifier]; cell.selectionStyle = UITableViewCellSelectionStyleNone; } cell.accessoryType = UITableViewCellAccessoryNone; UILabel * name = [[UILabel alloc]initWithFrame:CGRectMake(72,3,242,15)]; name.text = (NSString*)[(Tweet*)[tweetArray objectAtIndex:indexPath.row] userName]; [name setFont:[UIFont fontWithName:@"Helvetica" size:14]]; name.textColor=[UIColor colorWithRed:250 green:250 blue:210 alpha:0.5]; [name setBackgroundColor:[UIColor clearColor]]; UILabel * tweetLabel = [[UILabel alloc]initWithFrame:CGRectMake(72,20,242,60)]; tweetLabel.text = (NSString*)[(Tweet*)[tweetArray objectAtIndex:indexPath.row] tweet]; tweetLabel.numberOfLines = 3; tweetLabel.textColor=[UIColor colorWithRed:252 green:148 blue:31 alpha:1]; [tweetLabel setFont:[UIFont fontWithName:@"Helvetica" size:12]]; [tweetLabel setBackgroundColor:[UIColor clearColor]]; NSLog(@" lblUserTweet : %@ ",name.text); UIImageView *myImage = [[UIImageView alloc]initWithFrame:CGRectMake(6,3,58,49)]; NSURL url = [NSURL URLWithString:[(Tweet)[tweetArray objectAtIndex:indexPath.row] image_url]]; NSData *data = [NSData dataWithContentsOfURL:url]; [myImage setImage: [UIImage imageWithData:data]]; [cell.contentView addSubview:myImage]; [cell.contentView addSubview:tweetLabel]; [cell.contentView addSubview:name]; return cell; } (void)dealloc { [tweetsTableView release]; [tweetArray release]; [super dealloc]; }

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  • add limited product to cart in android

    - by user1859172
    I have to develop one shopping cart app. Here i have to add the product only 5.otherwise have to display the message on alert dialog like 5 products only allowed. How can i develop this.please help me This is my code: ImageButton mImgAddCart = (ImageButton) findViewById(R.id.img_add); mImgAddCart.setOnClickListener(new OnClickListener() { public void onClick(View v) { // TODO Auto-generated method stub mTitle = txttitle.getText().toString(); mCost = text_cost_code.getText().toString(); mCost = mCost.replace("From ", ""); mTotal = txt_total.getText().toString(); mTotal = mTotal.replace("From ", ""); mQty = edit_qty_code.getText().toString(); if (Constants.mItem_Detail.size() <= 0) { HashMap<String, String> mTempObj = new HashMap<String, String>(); mTempObj.put(KEY_TITLE, mTitle); mTempObj.put(KEY_QTY, mQty); mTempObj.put(KEY_COST, mCost); mTempObj.put(KEY_TOTAL, mTotal); Constants.mItem_Detail.add(mTempObj); } else { for (int i = 0; i < Constants.mItem_Detail.size(); i++) { if (Constants.mItem_Detail.get(i).get(KEY_TITLE) .equals(mTitle)) { Constants.mItem_Detail.remove(i); break; } else { } } HashMap<String, String> mTempObj = new HashMap<String, String>(); mTempObj.put(KEY_TITLE, mTitle); mTempObj.put(KEY_QTY, mQty); mTempObj.put(KEY_COST, mCost); mTempObj.put(KEY_TOTAL, mTotal); Constants.mItem_Detail.add(mTempObj); } AlertDialog.Builder alertdialog = new AlertDialog.Builder( Small.this); alertdialog.setTitle(getResources() .getString(R.string.app_name)); alertdialog.setMessage("Add in ViewCart"); alertdialog.setPositiveButton("OK", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub finish(); } }); alertdialog.show(); } }); How can i set the condition for this.please give me one idea.

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  • extern and static variable storage ???

    - by Riyaz
    when will memory created for extern and static variable. Is it in stack or heap. Since its life time is till the program end, it cant be in stack it must be in heap. But size of the heap will known only at the run time. So somewhat confusion here ......

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  • non contiguous String object C#.net

    - by Kazoom
    By what i understand String and StringBuilder objects both allocate contiguous memory underneath. My program runs for days buffering several output in a String object. This sometimes cause outofmemoryexception which i think is because of non availability of contiguous memory. my string size can go upto 100MBs and i m concatenating new string frequently this causes new string object being allocated. i can reduce new string object creation by using Stringbuilder but that would not solve my problem entirely Is there an alternative to a contiguous string object?

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  • The Best Way to shred XML data into SQL Server database columns

    - by eddiegroves
    What is the best way to shred XML data into various database columns? So far I have mainly been using the nodes and value functions like so: INSERT INTO some_table (column1, column2, column3) SELECT Rows.n.value('(@column1)[1]', 'varchar(20)'), Rows.n.value('(@column2)[1]', 'nvarchar(100)'), Rows.n.value('(@column3)[1]', 'int'), FROM @xml.nodes('//Rows') Rows(n) However I find that this is getting very slow for even moderate size xml data.

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  • How to justify text on a TextView made easy- Android

    - by Juan
    I'm looking for a simple way to forget that I'm using a WebView to have justified text in my TextView. Has someone made a custom view for this? I'm well aware that I can do something like this: WebView view = new WebView(this); view.loadData("my html with text justification","text/html","utf-8"); But it gets ugly when you want to set the size, the color or other common properties of the TextView, there must be a more convenient way of doing it.

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  • Can ggplot2 work with R's canvas backend

    - by Casbon
    Having installed canvas from here http://www.rforge.net/canvas/files/ I try to plot: > canvas('test.js') > qplot(rnorm(100), geom='histogram') stat_bin: binwidth defaulted to range/30. Use 'binwidth = x' to adjust this. Error in grid.Call.graphics("L_setviewport", pvp, TRUE) : Non-finite location and/or size for viewport >

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  • How can I get node coordinates from a graph, using Perl?

    - by jonny
    Ok, I have a flowchart definition (basically, array of nodes and edges for each node). Now I want to calculate coordinates for every task in the flow, preferably hierarchycal style. I need something like Graph::Easy::Layout but I have no idea how to get nodes coordinates: I render nodes myself and I only want to retrieve box coordinates/size. Any suggestions? What I need is a CPAN module available even in Debian repository.

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  • Unable to migrate mail with large attachment upto 2 MB

    - by Preeti
    I am creating EML file with "System.Net.Mail".After that i am migrating it to Google Mail using google API ver 2. For small attachments it is working fine. But in case of large attachment upto (1 MB or 2 MB) it throwing exception "Request aborted". How can migrate mail with large file attachment? I got solution of sending large size attachment using System.Net.Mail. But how to implement it in case of Google apps? Thanx

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  • Passing a hostname of over 255 characters to getaddrinfo causes a getaddrinfo failed: memory allocat

    - by darrickc
    I am currently upgrading our software to support ipv6 and in the meantime I'm expanding hostname/ip fields to the max hostname size. In sun documentation it seems like this can be up to 1025 (netdb.h:#define NI_MAXHOST 1025 - this is the recommended hostname allocation define), but when I pass a hostname of over 255 to getaddrinfo I get "getaddrinfo failed: memory allocation failure". I am testing on a Sol10 box. Ideas?

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  • How to fill a two Dimensional ArrayList in java with Integers?

    - by eNetik
    I have to create a 2d array with unknown size. So I have decided to go with a 2d ArrayList the problem is I'm not sure how to initialize such an array or store information. Say I have the following data 0 connects 1 2 connects 3 4 connects 5 ....etc up to a vast amount of random connections and I want to insert true(1) into [0][1], true(1) into [2][3], true(1) into [4][5]. Can the array automatically update the column/rows for me Any help is appreciated thanks

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  • compilation of image stitching code in matlab

    - by chee
    i am facing lots of problems while running code for image stitching given at this link http://se.cs.ait.ac.th/cvwiki/matlab:tutorial:image_stitching_from_high-view_images_using_homography may i get help regarding this type of problems here. EDIT: Image stitching code fails with the following message: ??? Undefined function or variable 'x2'. Error in ==compute_direct_homography at 26 amplified_x2=x2.*repmat([diagonal_ratio(x1,x2) diagonal_ratio(x1,x2) 1]',1,size(x2,2)); %assumption 1degree of lat and long =110,000 meters refer wiki Error in == project at 3 compute_direct_homography;

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  • Count the number of lines in a file with Ruby, without reading entire file into memory

    - by smnirven
    I'm processing huge data files (millions of lines each). Before I start processing I'd like to get a count of the number of lines in the file, so I can then indicate how far along the processing is. I am using Ruby, and because of the size of the files, it would not be practical to read the entire file into memory just to count how many lines there are. Does anyone have a good suggestion on how to do this?

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  • Tuning garbage collections for low latency

    - by elec
    I'm looking for arguments as to how best to size the young generation (with respect to the old generation) in an environment where low latency is critical. My own testing tends to show that latency is lowest when the young generation is fairly large (eg. -XX:NewRatio <3), however I cannot reconcile this with the intuition that the larger the young generation the more time it should take to garbage collect. The application runs on linux, jdk 6 before update 14, i.e G1 not available.

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  • Find most common string in an array

    - by j.
    I have this array, for example (the size is variable): x = ["1.111", "1.122", "1.250", "1.111"] and I need to find the most commom value ("1.111" in this case). Is there an easy way to do that? Tks in advance!

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  • Setting the first two bytes of a block of memory

    - by idealistikz
    Suppose I have a block of memory as such: void *block = malloc(sizeof(void *) + size); How do I set the first two bytes of the block as NULL or have it point somewhere? I do not want to simply assign 'block' to NULL or to another pointer because I want to access the rest of the memory I malloc'ed.

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  • Does Table.InsertOnSubmit create a copy of the original table?

    - by Bryan
    Using InsertOnSubmit seems to have some memory overhead. I have a System.Data.Linq.Table<User> table. When I do table.InsertOnSubmit(user) and then int count = table.Count(), the memory usage of my application increases by roughly the size of the User table, but the count is the number of items before user was inserted. So I'm guess an enumeration after InsertOnSubmit will create a copy of the table. Is that true?

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  • How to handle null return from custom HttpHandler in asp.net?

    - by Campos
    I'm using a custom ashx HttpHandler to retrieve gif images from a database and show it on a website - when the image exists, it works great. However, there are cases when the image will not exist, and I'd like to have the html table holding the image to become invisible so the "image not found" icon is not shown. But since the HttpHandler is not synchronous, all my attempts checking for image size at Page_Load were frustrated. Any ideas on how this can be accomplished?

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  • Dynamic sizing of SSRS Report....

    - by Mike
    Hello....I have a report with 12 Tablixes on it. The user can pcik and choose which one of these Tables and their associated data shows when the Report is generated. However, when chosing a subset of the 12 tables, the report shows blank space where I hide the non-selected tablse. Is there any way to make the report resize/fit the size of the selected tables...truncating the white space where the invisible tables are? Thanks

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