How to Convert Binary numbers to Decimal Numbers - Java Tutorial - Appficial

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Before the compiler stores numbers in memory, it first translates them to a binary number. A binary number is composed of bits (1s and 0s), stored using base 2 (as opposed to decimal numbers which are stored using base 10). Base 2 means that each digit must be either 0 or 1 and the placement of each digit (from right to left) has an increasing power starting at 20.
For example, this is how we convert 11010 from binary (base 2) to decimal 26 (base 10)

11010 = 1* 24 + 1* 23 + 0 * 22 + 1 * 21 + 0 * 20
11010 = 1 * 16 + 1 * 8 + 0 * 4 + 1 * 2 + 0 * 1
11010 = 16 + 8 + 0 + 2 + 0
11010 = 26

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