Computer Tricks

Replace the ‘en’ in a Wikipedia link with ‘simple’ to cut out irrelevant info on the page AppInventor– Learn Or Develop Android Apps/Games With Very Little Or No Programming Knowledge For Free –MIT App Inventor Convert YouTube Videos To Gif By AddingGif Before Youtube In Url Check A Website Is Safe To Visit Or Not By Changing Red Letter By Website Domain Name http://www.google.com/safebrowsing/diagnostic?Site=facebook.com If the quality of your Netflix videos are poor then, press Ctrl+Shift+Alt+S and change the buffer rate to 3000 for HD video If you have an Excel…

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History of Computers

Evolution of Computers:-   Charles Babbage: Charles Babbage is considered to be the father of modern digital computers Charles Babbage designed “Difference Engine” in 1822 Charles Babbage designed a fully automatic analytical engine in 1842 for performing basic arithmetic functions Charles Babbage’s efforts established a number of principles that are fundamental to the design of any digital computer Computer Generations:- Till today, there are five computer generations:- FIRST GENERATION (1942-1955):- Key Technologies Used in FIRST generation is based on Vacuum tubes Electromagnetic relay memory Punched cards secondary storage Key characteristics…

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Made iN Java – Part 2

QUESTION: How to convert a full string into “UPPER CASE”?   ANSWER: Following Video Link changes the case of a string to “UPPER CASE” by using stringName.toUpperCase () method of String class. YouTube Tutorial Link: https://www.youtube.com/watch?v=ikbWRjEmVIE   QUESTION: How to determine the “Last Index Position” of a subString inside a String?   ANSWER: Following Video Link how to determine the Last Index Position of a subString inside a string with the help of stringName.lastIndexOf (“subSTRING”) method. YouTube Tutorial Link: https://www.youtube.com/watch?v=lTwYq6kZh3g   QUESTION: How to “COMPARE” two Strings by using default…

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Made iN Java – Part 1

Made iN Java – Part 1 QUESTION:- How to READ keyboard input and display it on console? ANSWER: Following Video Link How to READ keyboard input and display it on console YouTube Tutorial Link: QUESTION: How to PRINT Command Line Arguments? ANSWER: Following Video Link demonstrates how to PRINT Command Line Arguments. YouTube Tutorial Link: QUESTION: How to CHECK a File is Hidden or not? ANSWER: Following Video Link demonstrates how to CHECK that a File is hidden or not by using fileObjectName.isHidden () method of File class. YouTube Tutorial…

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