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What is the use of hashCode in Java?
In Java, obj.hashCode() returns some value. What is the use of this hash code in programming?
9 Answers
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How can I get the current date and time in UTC or GMT in Java?
When I create a new Date object, it is initialized to the current time but in the local timezone. How can I get the current date and time in GMT?
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How do I list all tables in a schema in Oracle SQL?
How do i list all tables in a schema in Oracle SQL?
14 Answers
14
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Check if a Python list item contains a string inside another string
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If you only want to check for the presence of abc in any string in the list, you could try
some_list = ['abc-123', 'def-456', 'ghi-789', 'abc-456']
if any("abc" in s for s in some_list):
# whatever
If you really want to get all the items containing abc, use
matching ...
Checking to see if one array's elements are in another array in PHP
I have two arrays in PHP as follows:
7 Answers
7
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Does MongoDB's $in clause guarantee order
When using MongoDB's $in clause, does the order of the returned documents always correspond to the order of the array argument?
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In laymans terms, what does 'static' mean in Java? [duplicate]
I have been told several definitions for it, looked on Wikipedia, but as a beginner to Java I'm still not sure what it means. Anybody fluent in Java and idiot?
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Length of generator output [duplicate]
Python provides a nice method for getting length of an eager iterable, len(x) that is. But I couldn't find anything similar for lazy iterables represented by generator comprehensions and functions. Of course, it is not hard to write something like:
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Why use #ifndef CLASS_H and #define CLASS_H in .h file but not in .cpp?
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First, to address your first inquiry:
When you see this in .h file:
#ifndef FILE_H
#define FILE_H
/* ... Declarations etc here ... */
#endif
This is a preprocessor technique of preventing a header file from being included multiple times, which can ...
Fragment transaction animation: slide in and slide out
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UPDATE For Android v19+ see this link via @Sandra
You can create your own animations. Place animation XML files in res > anim
enter_from_left.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/andr...