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Passing data between a fragment and its container activity

...the interface... public interface OnDataPass { public void onDataPass(String data); } Then, connect the containing class' implementation of the interface to the fragment in the onAttach method, like so: OnDataPass dataPasser; @Override public void onAttach(Context context) { super.onAtt...
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Split string to equal length substrings in Java

How to split the string "Thequickbrownfoxjumps" to substrings of equal size in Java. Eg. "Thequickbrownfoxjumps" of 4 equal size should give the output. ...
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Comparing Java enum members: == or equals()?

... I do this when .equals()ing string values, but I still think that it's a crappy way to write null-safe code. I'd much rather have an operator (or a method, but I know that [null object].equals won't ever be null-safe in Java because of how the dot opera...
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Retain precision with double in Java

...int things out in a slightly friendlier format, try java.util.Formatter or String.format. In the format string specify a precision less than the full precision of a double. To 10 significant figures, say, 11.399999999999 is 11.4, so the result will be almost as accurate and more human-readable in ca...
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Studies on optimal code width?

...ght Margin" in your IDE of choice, it is likely that it will default to 80 characters. I tend to change it to 120 for no reason other than it was the standard at a company I was with a few years back, and no other company has told me to do it differently. ...
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What is the difference between Integer and int in Java?

...bleValue); Byte myByteValue = doubleObject.byteValue (); String myStringValue = doubleObject.toString(); Primitive data types are store the fastest available memory where the Helper class is complex and store in heap memory. reference from "David Gassner" Java Essential Training...
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Error 908: Permission Receive SMS - #5 by Taifun - MIT App Inventor Help - MIT App Inventor Community

...eDirect and MakePhoneCallDirect blocks that do the old behavior that needs extra permissions. We chose to have the existing SendMessage and MakePhoneCall blocks launch the default apps via Intents , as recommended by Google policy, which should work for most people. For receiving, we made it so tha...
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What is the boundary in multipart/form-data?

... @K3rnel31 Of course, unless the new boundary string has the same length. – Oscar Mederos Apr 16 '14 at 19:00 5 ...
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How to handle Handler messages when activity/fragment is paused

... 1; final static class State extends Fragment { static final String TAG = "State"; /** * Handler for this activity */ public ConcreteTestHandler handler = new ConcreteTestHandler(); @Override public void onCreate(Bundle savedInstanceSt...
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How to check command line parameter in “.bat” file?

... command. ... the /I switch, if specified, says to do case insensitive string compares. it may be of help if you want to give case insensitive flexibility to your users to specify the parameters. IF /I "%1"=="-b" GOTO SPECIFIC ...