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WhatsApp API (java/python) [closed]

I am looking for WhatsApp API, preferably a Python or Java library. 5 Answers 5 ...
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How to override equals method in Java

I am trying to override equals method in Java. I have a class People which basically has 2 data fields name and age . Now I want to override equals method so that I can check between 2 People objects. ...
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Why aren't variables declared in “try” in scope in “catch” or “finally”?

In C# and in Java (and possibly other languages as well), variables declared in a "try" block are not in scope in the corresponding "catch" or "finally" blocks. For example, the following code does not compile: ...
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What does this symbol mean in IntelliJ? (red circle on bottom-left corner of file name, with 'J' in

Under the target folder in IntelliJ for a Java project I created, I have a few java source files in the package. Beside each file the 'J' icon has a red circle with a line through it. ...
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Eclipse compilation error: The hierarchy of the type 'Class name' is inconsistent

I have downloaded some open source software written in Java and tried to compile it using Eclipse. I got the error: " The hierarchy of the type 'Class name' is inconsistent " in some files. What causes these errors and how do I fix them? ...
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HTTP POST using JSON in Java

I would like to make a simple HTTP POST using JSON in Java. 11 Answers 11 ...
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How can I combine two HashMap objects containing the same types?

...more control over how values are combined, you can use Map.merge, added in Java 8, which uses a user-provided BiFunction to merge values for duplicate keys. merge operates on individual keys and values, so you'll need to use a loop or Map.forEach. Here we concatenate strings for duplicate keys: m...
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Android: What's the difference between Activity.runOnUiThread and View.post?

... This is not true. This has never been true, but at some point the JavaDoc for View.java did wrongly state that "View.post only works from another thread when the View is attached to a window". This was fixed on Oct. 15, 2012, but took a while to penetrate the minds of Android developers. ...
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Java ArrayList - how can I tell if two lists are equal, order not mattering?

...ollections4.CollectionUtils public static boolean isEqualCollection(java.util.Collection a, java.util.Collection b) Returns true iff the given Collections contain exactly the same elements with exactly the same cardinalities. That is, if...
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Can Retrofit with OKHttp use cache data when offline

...n interceptor using okHttpClient.networkInterceptors() method but received java.net.UnknownHostException when I tried to use the cache offline. It turned out that I had to add okHttpClient.interceptors() as well. The problem was that cache wasn't written to flash storage because the server returned...