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Array initialization syntax when not in a declaration
...an use the toArray() method on it.
For example:
ArrayList<String> al = new ArrayList<String>();
al.add("one");
al.add("two");
String[] strArray = (String[]) al.toArray(new String[0]);
I hope this might help you.
...
When tracing out variables in the console, How to create a new line?
...
In ES6/ES2015 you can use string literal syntax called template literals. Template strings use backtick character instead of single quote ' or double quote marks ". They also preserve new line and tab
const roleName = 'test1';
const role_ID = 't...
Right way to reverse pandas.DataFrame?
...ata.Odd[idx])
You are getting an error because reversed first calls data.__len__() which returns 6. Then it tries to call data[j - 1] for j in range(6, 0, -1), and the first call would be data[5]; but in pandas dataframe data[5] means column 5, and there is no column 5 so it will throw an exceptio...
Runtime vs. Compile time
...ink of it in terms of errors, and when they can be caught.
Compile time:
string my_value = Console.ReadLine();
int i = my_value;
A string value can't be assigned a variable of type int, so the compiler knows for sure at compile time that this code has a problem
Run time:
string my_value = Cons...
Printing Lists as Tabular Data
...ermtables: https://github.com/nschloe/termtables
import termtables as tt
string = tt.to_string(
[["Alice", 24], ["Bob", 19]],
header=["Name", "Age"],
style=tt.styles.ascii_thin_double,
# alignment="ll",
# padding=(0, 1),
)
print(string)
+-------+-----+
| Name | Age |
+======...
Is there an eval() function in Java? [duplicate]
I have a string like the following:
12 Answers
12
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Using .NET, how can you find the mime type of a file based on the file signature not the extension
... System.UInt32 pBC,
[MarshalAs(UnmanagedType.LPStr)] System.String pwzUrl,
[MarshalAs(UnmanagedType.LPArray)] byte[] pBuffer,
System.UInt32 cbSize,
[MarshalAs(UnmanagedType.LPStr)] System.String pwzMimeProposed,
System.UInt32 dwMimeFlags,
out Sy...
Batch file: Find if substring is in string (not in a file)
In a batch file, I have a string abcdefg . I want to check if bcd is in the string.
10 Answers
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What is the official “preferred” way to install pip and virtualenv systemwide?
...here/how do you install setuptools-0.8? Looks like you are just grabbing ez_setup.py for a "lightweight version" of getting pip. I'd do the same but fear that it will break in the near future and I'll get stuck here again (like I always do)
– Steven Lu
Jul 13 '...
Google App Engine: Is it possible to do a Gql LIKE query?
...s:
Tip: Query filters do not have an explicit way to match just part of a string value, but you can fake a prefix match using inequality filters:
db.GqlQuery("SELECT * FROM MyModel WHERE prop >= :1 AND prop < :2",
"abc",
u"abc" + u"\ufffd")
This matches every MyMode...