After declaring and assigning the variable, you only need to use the variable name.
Place the name where you will use it instead of a value and before the end of the line.
Examples:
Processing and Java-based example:
String name = "Chuck";
println("Your name is " + name + "! Hello, " + name + ".");
// The above line would print "Your name is Chuck! Hello, Chuck."
C# example:
string name = "Chuck";
print("Your name is " + name + "! Hello, " + name + ".");
// The above line would print "Your name is Chuck! Hello, Chuck."
Python example:
name = "Chuck"
print("Your name is " + name + "! Hello, " + name + ".")
# The above line would print "Your name is Chuck! Hello, Chuck."