In this Python article, you will learn how to perform the search and replace operations on a Python string using regular expressions. The regular expression in Python provides more methods and techniques to match the patterns and perform operations on a string than a simple string method. This tutorial discusses regular expression sub() and subn() methods that can… Read More »
Problem Given a string, find the longest substring with unique characters Sample Input “abcdd” Sample Output 4 Explanation The longest substring with unique characters is “abcd” resulting 4 unique letters. Approach The idea is to scan the string from left to right, keeping track of the longest non-repeating character substring seen so far. When traversing the string, we… Read More »
To generate random data in Python we generally use Python’s random module. And in this tutorial, you will learn how to use the Python random module to create random strings and passwords. How to create a random string in Python? To generate a random string of any length we can use the Python random module. Here are the… Read More »
A Python string is a collection of characters inside single, and double-quotes. And often in Python programming, we deal with string manipulation where we change, slice, remove and replace characters between the string. Although Python string is an immutable data type, still it provides some methods and techniques that can manipulate the initial value of the string and… Read More »
Introduction We usually use System.out.println or System.err.println to print messages on the console. But to use the printf formatting options, we can use the System.out.format methods or System.err.format methods. Formatting output with System.out.format Formatting output using above methods will eliminate the plus signs we otherwise use to merge the values together and make the code more readable and… Read More »
Strings are an extremely important part of the Java language. Most of the data that we receive is stored in the form of Strings because they are easy to manipulate, read, and store. Java API also provides methods for parsing and converting Java string into different other data types. There are also many methods and format specifiers to… Read More »
