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Java “lambda expressions not supported at this language level”
I was testing out some new features of Java 8 and copied the example into my IDE (Eclipse originally, then IntelliJ) as shown here
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Android LinearLayout Gradient Background
...would check your alpha channel on your gradient colors. For me, when I was testing my code out I had the alpha channel set wrong on the colors and it did not work for me. Once I got the alpha channel set it all worked!
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Can I obtain method parameter name using Java reflection?
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private Methods(){}
}
So for your class Whatever we can do a manual test:
import java.lang.reflect.Method;
public class ManualTest {
public static void main(String[] args) {
Method[] declaredMethods = Whatever.class.getDeclaredMethods();
for (Method declaredMethod : dec...
Comparing two dataframes and getting the differences
...ponse above.
df_diff = pd.concat([df1,df2]).drop_duplicates(keep=False)
Testing with these dataframes:
df1=pd.DataFrame({
'Date':['2013-11-24','2013-11-24','2013-11-24','2013-11-24'],
'Fruit':['Banana','Orange','Apple','Celery'],
'Num':[22.1,8.6,7.6,10.2],
'Color':['Yellow','Oran...
How to commit no change and new message?
...documentation (via DavidNeiss) including after-the-fact data about passing tests or lint (via Robert Balicki).
To test git commands without generating arbitrary changes (via Vaelus).
To re-create a deleted bare repository using gitolite (via Tatsh).
To arbitrarily create a new commit, such as for re...
How do I add indices to MySQL tables?
... into using the index by index hint sytax, but if you do, be sure run some tests to determine whether it actually improves performance to use the index as you hint it.
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A beginner's guide to SQL database design [closed]
...tually makes queries slower. It really depends on the query and you should test them with explain analyze if an index is a benefit.
– ArashM
Aug 23 '16 at 15:23
add a comment
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Trying to add adb to PATH variable OSX
...SER"/Library/Android/sdk/platform-tools:$PATH
Restart your bash window and test by typing adb shell
Good luck! :-)
Set up Heroku and GoDaddy? [closed]
...ng (in seconds) to cache a DNS entry. Set this to a low value while you're testing and then crank it up once you have your DNS figured out. Some DNS servers may override the TTL with their own value, so beware, but I think at worst this is usually a couple of hours.
– Adam Fabi...
Concatenating multiple text files into a single file in Bash
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Got an upvote from me because it allows for arbitrary testing/ operations by file name prior to output and it's quick and easy and good for practice. (In my case I wanted: for i in *; do echo -e "\n$i:\n"; cat $1; done )
– Nathan Chappell
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