By Marina Verdú

One day my company received complaints from one of our biggest customers and decided to send me and a co-worker to fix the issue on-site. Our application was supposed to read data from a text file and insert records into a database. However, when the button was pressed, nothing was happening.

After analyzing the source code, we noticed that the application was looking for a file at a specific folder with a specific name. When not found, it was doing nothing (empty catch block).

It took us literally 5 minutes to change the code to output a feedback message like…

Photo by 贝莉儿 DANIST on Unsplash

Consider you own a website where people can buy/sell cars. Needless to say, you must have a search page where users can specify numerous search criteria. Similar to the page below from

Anar Khalilov

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