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typecast string to integer - Postgres
...hich has raw feeds in Varchar, I need to import a column in varchar into a string column. I tried using the <column_name>::integer as well as to_number(<column_name>,'9999999') but I am getting errors, as there are a few empty fields, I need to retrieve them as empty or null into the...
Given a class, see if instance has method (Ruby)
..., not just methods.
For example:
Given an instance of a class that has a String attribute first_name:
<instance>.first_name.class #=> String
<instance>.class.method_defined?(:first_name) #=> true
since first_name is both an attribute and a method (and a string of type String)...
How do I format a string using a dictionary in python-3.x?
I am a big fan of using dictionaries to format strings. It helps me read the string format I am using as well as let me take advantage of existing dictionaries. For example:
...
Extracting numbers from vectors of strings
I have string like this:
11 Answers
11
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How do I address unchecked cast warnings?
...affect the entire method.
Example:
@SuppressWarnings("unchecked")
Map<String, String> myMap = (Map<String, String>) deserializeMap();
There is no way to determine whether the Map really should have the generic parameters <String, String>. You must know beforehand what the param...
Convert dd-mm-yyyy string to date
i am trying to convert a string in the format dd-mm-yyyy into a date object in JavaScript using the following:
14 Answers
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How do I clone a generic List in Java?
I have an ArrayList<String> that I'd like to return a copy of. ArrayList has a clone method which has the following signature:
...
How to convert a string of bytes into an int?
How can I convert a string of bytes into an int in python?
12 Answers
12
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How to make a new List in Java
...eate a list that has things in it (though it will be fixed size):
List<String> messages = Arrays.asList("Hello", "World!", "How", "Are", "You");
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How do I sort an observable collection?
...;Person>,IEquatable<Person>
{
public string Name { get; set; }
public int Age { get; set; }
public int CompareTo(Person other)
{
if (this.Age == other.Age) return 0;
ret...