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Tool to read and display Java .class versions
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Use the javap tool that comes with the JDK. The -verbose option will print the version number of the class file.
> javap -verbose MyClass
Compiled from "MyClass.java"
public class MyClass
SourceFile: "MyClass.java"
minor version: 0
major version: 46
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To only show the version:
WIN...
How do I apply a diff patch on Windows?
...CR/LF). Try to open the patchfile in a reasonably smart editor and it will convert it for you.
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Reading CSV file and storing values into an array
...ile twice)
You can store values in two List<T> and then use them or convert into an array using List<T>.ToArray()
Very simple example:
var column1 = new List<string>();
var column2 = new List<string>();
using (var rd = new StreamReader("filename.csv"))
{
while (!rd.End...
Python (and Python C API): __new__ versus __init__
...xample, say you wanted to create a subclass of tuple that can contain only integral values between 0 and size.
class ModularTuple(tuple):
def __new__(cls, tup, size=100):
tup = (int(x) % size for x in tup)
return super(ModularTuple, cls).__new__(cls, tup)
You simply can't do t...
What's the simplest way to test whether a number is a power of 2 in C++?
...got, sorry) is adequate. You may want a > 0 test if you're using signed integers.
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How to get instance variables in Python?
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Certain built-in types, such as int. Try saying "x = 5" and then "x.__dict__" and you'll get an AttributeError
– Eli Courtwright
Sep 21 '08 at 5:47
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SearchView's OnCloseListener doesn't work
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Full answer: if (Build.VERSION.SdkInt > BuildVersionCodes.NMr1) item.SetOnActionExpandListener(this); else MenuItemCompat.SetOnActionExpandListener(item, this);
– FindOutIslamNow
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How can I handle the warning of file_get_contents() function in PHP?
...ce, way at the top (in an included config file, for instance), and it will convert all your errors to Exceptions throughout.
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How to check whether an object is a date?
... numbers. The method in this answer really tells you whether the value is convertible to a Date.
– bdukes
Jun 23 '15 at 20:44
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Making an array of integers in iOS
If you want to make an array of integers, can you use NSInteger? Do you have to use NSNumber? If so, then why?
7 Answers
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