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Reading contents in multiples files block by block and writing them block by block in a single file using Java
Category : Java

Here is my source code. I got the reading part but need a simple logic for my writing part which I"m not getting. Here in my current logic, data gets overwritten and I'm always able to see the last block of read data in my written file.

import java.io.File;
import java.io.FileInputStream;
import java.io.

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Block by block encryption : decryption not working from second block
Category : Programming Languages

I am implementing CBC encryption + decryption block by block by using auto generated key and self defined IV. I am getting problem in second block decryption, decryption for first block is working but its not working for second block. Here is my code.

public static void main(String args[]) {
Cipher fcipher, scipher;
String plaintextstring = "";

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how to make ext4 file system block group have block group descriptor and super block
Category : Programming Languages

I found in the android, data partition and system partition of ext4 file system block group, only 0,1,3,5,7 etc have block group descriptor and super block. But in the Linux is all some, can you tell me how to make ext4 file system block group have block group descriptor and super block

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How to access outer block variable in inner block when inner block have same variable declaration?
Category : Programming Languages
int main(int argc, char** argv) {
int i=5;
int i=7;
", i);
return 0;

If I want to access outer i (int i=5) value in printf then how it can done?

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Is it good practice to have return statement in try block when returned value from finally block is concerned
Category : Programming Languages

I was wondering, is it good practice to return from try block?

package debug;
* @author Owner
public class Main {
public static void main(String[] args) {
static boolean cleanup() {
// Fail to cleanup.
return false;
static boo

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Does an exception in one statement in a try block cause control flow to bypass any remaining statements in the try block?
Category : Programming Languages

I have some C++ code that looks like this:

void Student::addCourse(Course cVal, string gr) throw(...) {
try {
GradedCourse c(cVal, gr); // If an exception is thrown here...
coursesTaken.insert(c); // will this statement be executed?
} catch(...) {

The GradedCourse

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I seem to be retaining self inside a block even when using an indirect __block reference to it, perhaps cause of copying the block to the heap?
Category : Development Tools & Services

[EDIT: Since it was causing confusion, this whole case assumes MRR and not ARC]

I'm having an odd (there's an explanation obviously, I just can't figure it out) behavior with a block which references self (indirectly) and is in turned copied to another object's property (that is, copied from object As' stack to the heap and retained by an object B). If the block doesn't contain the

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jQuery. fadeIn() “inline-block” elements sets them to block
Category : Web Design

I need to fade in initially hidden divs which are hidden with display:none. When they are faded in, I need the display to be "inline-block" not "block" so they can display inline with each other rather than drop below each other. Is this possible?

height: 261px;
padding:5px 5px;
position: relative;
/*display: inline-block;

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ARC capturing self… block inside a block and reference being released before execution
Category : Mobile Programming

I have this problem: a block inside a block.

self.createStuff = ^ (NSString *text) {
self.post.onCompletion = ^(NSURLResponse *response, NSData *data, NSError *error){
[self doStuff]; // error here
[self doMoreStuff]; // error here

I will have errors in [self doStuff] and on [

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Do synchronized code blocks only block for assignments or for the entire block body?
Category : Programming Languages

I have a data var, monthArray, that is read by multiple consumers and periodically updataed by a single periodicall scheduled updater thread. All asynchronously.

I have considered both of these options to perform the update safely.

ArrayList<String> tempArray = ModelJob.getDistinctMonths(user, true);
synchronized (monthArray) {

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