programming-for-dummies

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Data Structures
Creating a C# structure
Unlike Java, C# offers a structure, which acts like a variable that typically
holds two or more variables. To create a structure, use the struct keyword
as follows:
struct name {
public datatype variable;
};
The name of a structure can be any descriptive name, such as people2get
or my_relatives. Inside a structure, you must declare one or more variables.
A typical structure might look like this:
struct MyGrades {
public char grade;
public int class_number;
};
After defining a structure, you can declare a variable to represent that structure,
such as
struct geology = MyGrades();
After declaring a variable as a structure, you can store data in the individual
fields of a structure like this:
struct geology = MyGrades();
geology.grade = “A”;
geology.class_number = 302;
Creating an array
Arrays in Java/C# are known as zero-based arrays, which means that the first
element of the array is located at index number 0, the second element of the
array is located at index number 1, and so on.
To create an array in Java, declare its data type and size, such as
datatype [] arrayname = new datatype[arraysize];
The array name can be any descriptive name. The array size defines how
many items the array can hold. To create an array that can hold ten integers,
you could define an array like this:
int [] mynumbers = new int[10];