Data Types. Variables are placeholders used to store values; they have names and data types. The data type of a variable determines how the bits representing those values are stored in the computer's memory. When you declare a variable, you can also supply a data type for it.
The differences between jogging and running are not clear-cut. In fact, the words are often used interchangeably. According to the Better Health Channel, the main difference between running and jogging is intensity. Runners sometimes jog for a while before a race or a long run to get their muscles loose.
Parkour and freerunning are two related but different forms of urban athletics. In both, practitioners run, climb and jump to move through an area, which is often a landscape crowded with obstacles. The two activities share many techniques, but have different goals and philosophies.