Q1. What are the Wrapper classes available for double primitive type ?
Ans. java.lang.Double
Q2. What is the default assigned values for double in java ?
Ans. 0.0d
Q3. What is the difference between float and double?
Ans. Float can represent up to 7 digits accurately after decimal point, where as double can represent up to 15 digits accurately after decimal point.
Q4. What is the size of double type ?
a. 16 bit
b. 32 bit
c. 64 bit
d. 128 bit
Ans. 64 bit