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java.lang.UnsupportedClassVersionError Unsupported major.minor version 51.0 [duplicate]
I am trying to build an application, but it gives some error. My JDK version is given below:
7 Answers
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How to set MSDN to be always in English
... But you need to do this every time, are there settings which always apply? maybe with an microsoft account?
– Jan
Feb 19 '16 at 7:18
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How to force garbage collector to run?
... I prefer @Karthik's answer, there can be situations where an app should legitimately call GC.Collect(). Very rarely though.
– Henk Holterman
Nov 23 '10 at 15:18
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Image library for Python 3
...ge as a PNG file:
from PySide.QtCore import *
from PySide.QtGui import *
app = QCoreApplication([])
img = QImage('input.jpg')
g = QPainter(img)
g.setRenderHint(QPainter.Antialiasing)
g.setBrush(QColor(img.pixel(20, 20)))
g.drawEllipse(QPoint(20, 20), 10, 10)
g.end()
img.save('output.png')
But...
What steps should I take to protect my Google Maps API Key?
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and what if I take the api key to use in my own APP (windows/ios/android)? i can simulate the referrer and use this key for my own purpose at your cost !
– loki
Aug 6 '18 at 6:39
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undefined reference to `__android_log_print'
... for me. Just make sure to add the ndk part in the build.gradle inside the app folder instead of the one in the project folder (module name).
– mathiass
Jun 6 '15 at 20:59
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Rails: select unique values from a column
...el.uniq.pluck(:rating)
# rails 5+
Model.distinct.pluck(:rating)
Update
Apparently, as of rails 5.0.0.1, it works only on "top level" queries, like above. Doesn't work on collection proxies ("has_many" relations, for example).
Address.distinct.pluck(:city) # => ['Moscow']
user.addresses.disti...
How do I disable a jquery-ui draggable?
...e side effect of using disable is the draggable elements have a greyed out appearance. destroy seems to leave the appearance alone.
– samazi
Oct 3 '14 at 11:42
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How to activate virtualenv?
... the flask project directory and under microblog directory there should be app and venv folders. then run the below command, This is one worked for me in Ubuntu.
source venv/bin/activate
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Clear text from textarea with selenium
I've got some tests where I'm checking that the proper error message appears when text in certain fields are invalid. One check for validity is that a certain textarea element is not empty.
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