encoding

Given a string ,Write a program to print letter followed by it’s frequency.This is also knows as Run Length Encoding. Example: Input aaabcc Output a3b1c2 Algorithm: 1.Pick the first character from the string and print it. 2.Count the number of subsequent occurrences of the picked character and then print the count. 3.Pick the next character and repeat step 2 till we reach end of the String. #include <iostream> #include<string> using namespace std; int main() { string str = "aaabcc"; int count=0; int i=0,j; int l = str. [Read More]

A very common task when working with Webservices, is to encode/decode specific URI components, and for there is no direct API in Java for the same, it gets a difficult. Below is the code piece that I have been using for quite some time now. public static final String ALLOWED\_CHARS = "abcdefghijklmnopqrstuvwxyz"+ “ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-_.!~*'()"; public static String encodeURIComponent(String input) { if(StringUtils.isEmpty(input)) { return input; } int l = input.length(); StringBuilder o = new StringBuilder(l * 3); [Read More]

Encoding Procedure for implementing the algorithm: 1. Select a block size to be used. Block size is directly related to effectiveness of encoding and inversely related to the time required. Hence a compromise has to be reached. 2. Convert the data byte stream to blocks of n bytes where n is the block size chosen. 3. The following example illustrates the procedure to be done next. Let n=6 and the first string be “kerala”. [Read More]