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Is there a portable way to print a message from the C preprocessor?
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117
The warning directive is probably the closest you'll get, but it's not entirely platform-indep...
Synchronise ScrollView scroll positions - android
...ew tags.
<com.test.ObservableScrollView
android:id="@+id/scrollview1"
... >
...
</com.test.ObservableScrollView>
Finally, we put it all together in the Layout class.
package com.test;
import android.app.Activity;
import android.os.Bundle;
public class Q3948934 extends...
Scatterplot with marginal histograms in ggplot2
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14 Answers
14
Active
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Rails: Default sort order for a rails model?
...y evaluation), so 7 scopes could be chained together but only resulting in 1 actual database query, to avoid performance problems from executing 7 separate queries.
You can use a passed in parameter such as a date or a user_id (something that will change at run-time and so will need that 'lazy eval...
Get only part of an Array in Java?
...xclusive. (This index may lie outside the array)
E.g.:
//index 0 1 2 3 4
int[] arr = {10, 20, 30, 40, 50};
Arrays.copyOfRange(arr, 0, 2); // returns {10, 20}
Arrays.copyOfRange(arr, 1, 4); // returns {20, 30, 40}
Arrays.copyOfRange(arr, 2, arr.length); // returns {3...
What is a NullReferenceException, and how do I fix it?
...amples
Some common scenarios where the exception can be thrown:
Generic
ref1.ref2.ref3.member
If ref1 or ref2 or ref3 is null, then you'll get a NullReferenceException. If you want to solve the problem, then find out which one is null by rewriting the expression to its simpler equivalent:
var r1 = ...
How do I change the data type for a column in MySQL?
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http://dev.mysql.com/doc/refman/5.1/en/alter-table.html
ALTER TABLE tablename MODIFY columnname INTEGER;
This will change the datatype of given column
Depending on how many columns you wish to modify it might be best to generate a script, or use some kind of...
How Do I 'git fetch' and 'git merge' from a Remote Tracking Branch (like 'git pull')
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170
You don't fetch a branch, you fetch an entire remote:
git fetch origin
git merge origin/an-ot...
Why should we include ttf, eot, woff, svg,… in a font-face
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Answer in 2019:
Only use WOFF2, or if you need legacy support, WOFF. Do not use any other format
(svg and eot are dead formats, ttf and otf are full system fonts, and should not be used for web purposes)
Original answer from 2012:
In...
What is the difference between javac and the Eclipse compiler?
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210
Eclipse has implemented its own compiler called as Eclipse Compiler for Java (ECJ).
It is diff...