Smartphone displays : Super AMOLED

The Super AMOLED an enhanced type of AMOLED(Active matrix OLED).It gives better reproduction and brighter,sharper images.Here the touch screen is built on display itself .In other types such as capacitive screens the sensors are built on as as a seperate layer.This make super AMOLED one of the thinnest display type in the world.Google Nexus use this type screen.

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UNIX : How to get record count from zipped file

Sometimes we may need to get records count from file . For that we can use wc -l , command with file name. In some situation the file will be in compressed format . wc -l will not directly work with zipped files . In this case we can do zcat the file and pipe the word count command with it. Example : Let say we have a file cricketData.dat.gz To get word count from the file use : zcat cricketData.dat.gz | wc -l This will give the record count.

Excel : How to pad zeros

Today I got a requirement to format the number in excel cell - to left pad number with zeros.i find the following function very useful to do it. In case one to make the number left padded with "0" s give the formula =TEXT(A1,"0000") In case two even more enhanced form to make it left padded with "0" and add two decimal places give the formula as =TEXT(A2,"0000.00")

Scala

Scala is a object oriented functional type programing language. All variables declared in scala is considered as objects.

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