Java primitive data types

• byte, bits, -128 to 127
• short, 16 bits, -32,768 to 32,767
• int, 32 bits, -2.1 billion to 2.1 billion (approx)
• long -9E18 to 9E18 (approx)
• float, 32 bits, precision to about 4 to 5 decimal points
• double, 64 bits, higher precision than float
• char, 16 bits, unicode character storage, defaults to \u0000
• boolean, 1 bit, defaults to false