Datatypes & Variables - Lab Exercise

Datatypes & Variables - Lab Exercise
Practice questions
    1)	Write a syntax of datatype and variable?
    
    2)	Write a program for default value of datatype?
    
    3)	Write a program using primitive and non-primitive datatypes and get output ? 
    
    3)  Write a program using Local Variable and Global Variable ? 
    
    3)  Write a program of Hello World! ?