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Convert xlsx to csv in Linux with command line
...v
He also links to several alternatives built in Bash, Python, Ruby, and Java.
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Why is printing “B” dramatically slower than printing “#”?
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I performed tests on Eclipse vs Netbeans 8.0.2, both with Java version 1.8;
I used System.nanoTime() for measurements.
Eclipse:
I got the same time on both cases - around 1.564 seconds.
Netbeans:
Using "#": 1.536 seconds
Using "B": 44.164 seconds
So, it looks like Netbeans has bad...
Calculate distance between two latitude-longitude points? (Haversine formula)
...versine formula to calculate the distance.
Excerpt:
This script [in Javascript] calculates great-circle distances between the two points –
that is, the shortest distance over the earth’s surface – using the
‘Haversine’ formula.
function getDistanceFromLatLonInKm(lat1,lon1,lat2...
Is it ever advantageous to use 'goto' in a language that supports loops and functions? If so, why?
...is supposed to be a better idea than goto, except for the fact it works in Java.
– Jeremy List
Apr 28 '14 at 13:20
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mysql error 1364 Field doesn't have a default values
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How to set a default value in a Java program?
– Nagarajan Shanmuganathan
Sep 1 '16 at 7:55
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Eclipse secure storage
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In windows 7 enerprise 64 bits + java 8
In eclipse go to :
Preferences
--> General
-> security
-> secure Storage.
In master Password providers UNCKECK Windows integration (64 bits)
Then go to General -- network connectio...
When do I use a dot, arrow, or double colon to refer to members of a class in C++?
Coming from other C-derived languages (like Java or C#) to C++, it is at first very confusing that C++ has three ways to refer to members of a class: a::b , a.b , and a->b . When do I use which one of these operators?
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What does enumerable mean?
... // 'age'
This example borrows heavily from Non-enumerable properties in JavaScript, but shows an object being enumerated over. Properties can either be or not be writable, configurable, or enumerable. John Resig discusses this in the scope of ECMAScript 5 Objects and Properties.
And, there's a S...
Why does (0 < 5 < 3) return true?
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Order of operations causes (0 < 5 < 3) to be interpreted in javascript as ((0 < 5) < 3) which produces (true < 3) and true is counted as 1, causing it to return true.
This is also why (0 < 5 < 1) returns false, (0 < 5) returns true, which is interpreted as 1, result...
Spring Data JPA - “No Property Found for Type” Exception
...ittle effort.
For example, if the managed entity has a name field (and the Java Bean standard getter and setter for that field), defining the findByName method in the DAO interface will automatically generate the correct query:
public interface IFooDAO extends JpaRepository< Foo, Long >{
...