throw and throws in java
throw and throws are the keywords in java which are related to the concept of exception handling in java. This post will explain the meaning and use of these keywords…
Exception handling in java
What is exception Exception is an unexpected and undesirable condition that occurs during program execution. Example, you are trying to fetch data from a database table. Connection to the database…
How to compare strings in javascript / 3 ways of string comparison in javascript
String comparison is a necessary operation required in every application and is used to determine if two string values are equal to one another or not. Javascript provides provisions to…
Substring in java with example
Substring means part of a string. Many times in an application, we get a long string and we need to extract some portion from it. java.lang.String class provides substring method…
How to check if a string is null or empty in java / 3 ways to check for a null or empty string in java
String is the most commonly used data type in java. Often you need to perform operations on a string but before any operation it is necessary to check for an…
How to check file size in python / 3 ways to find out size of file in python
Finding out a file size becomes important when you want to monitor a particular file for a size limit or when you want to order files in a directory based…
How to get current url in javascript
Sometimes on a button click or any other event, you need to get the current URL of the browser window. Javascript provides a simple method to determine the URL. window…
How to check if file exists in python / 4 ways to check if file exists in python
Many times a program tries to read from a file but the file has been removed or deleted from its location. Result is that the program crashes abnormally. Best way…
How to list all files in a directory in python / 3 ways to get files in directory in python
Many times we need to create a searching utility program which when provided a directory path lists all the files and sub-directories inside it. Python provides many utility functions to…