How-to articles, tricks, and solutions about CONCATENATION

How can I concatenate two arrays in Java?

To concatenate two arrays in Java, you can use the System.arraycopy method. Here's an example of how you can do this:

How can I get the concatenation of two lists in Python without modifying either one?

There are a few different ways to concatenate two lists in Python without modifying either one.

How do I concatenate two lists in Python?

There are a few ways to concatenate lists in Python.

How to concatenate (join) items in a list to a single string

You can use the join() method to concatenate (join) items in a list to a single string in Python.

Include constant in string without concatenating

In PHP, you can include a constant in a string without concatenating it by using double quotes (") instead of single quotes (') to define the string.

Pandas Merging 101

Here is an example of how to use the pd.merge() function to merge two DataFrames in pandas:

String concatenation: concat() vs "+" operator

In Java, you can use the concat() method of the java.lang.String class or the + operator to concatenate (join) two or more strings.

StringBuilder vs String concatenation in toString() in Java

In Java, you can use either a StringBuilder or string concatenation to create a string representation of an object.