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What is float in Java?

... In Java, when you type a decimal number as 3.6, its interpreted as a double. double is a 64-bit precision IEEE 754 floating point, while floatis a 32-bit precision IEEE 754 floating point. As a float is less precise than a double, the conve...
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How to create index on JSON field in Postgres?

...reSQL 9.3 Beta 2 (?), how do I create an index on a JSON field? I tried it using the -> operator used for hstore but got the following error: ...
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Remove data.frame row names when using xtable

OK, I admit this one is a bit uptight (read: "stupid"), and I assume it's quite easy too. I'm writing a report and I want to use xtable package for LaTeX table generation (note that memisc package does the job, but say I want to do this solely with xtable ). ...
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Coredata Error “data: ”

I try to pull out data from CoreData with the following code 2 Answers 2 ...
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Calculate a percent with SCSS/SASS

I want to set a width in percentage in scss via calculation, but it gives me errors.. 3 Answers ...
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Doctrine 2 can't use nullable=false in manyToOne relation?

An User has one Package associated with it. Many users can refer to the same package. User cannot exists without a Package defined. User should own the relation. Relation is bidirectional, so a Package has zero or more users in it. ...
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Does application.yml support environment variables?

I tried using env variables in my application.yml configration like: 2 Answers 2 ...
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How to revert Master branch to upstream

I have forked a git repository and setup upstream. I've made some changes in Master branch and committed and pushed to github. ...
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alternatives to REPLACE on a text or ntext datatype

I need to update/replace the data in datatable.column. The table has a field named Content . I'm using the REPLACE function. Since the column datatype is NTEXT , SQL Server doesn't allow me to use the REPLACE function. ...
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Syntax for if/else condition in SCSS mixin

... You could try this: $width:auto; @mixin clearfix($width) { @if $width == 'auto' { // if width is not passed, or empty do this } @else { display: inline-block; width: $width; } } I'm not sure o...