Help Manish in identifying the incorrect variable name with justification from the following:

Question

I. Help Manish in identifying the incorrect variable name with justification from the following:

i. unit@price; 

ii. fee; 

iii. userid; 

iv. avg marks;

II. Write Java code to declare a variable named Price of integer type. Assign a value 10 to this variable. Overwrite the value of price with its double value. Decrease the value of price by 5.

Answer 1

I. (i) unit@price; // Special symbols like "@" is not allowed in variable name

(iv) avg marks;// Spaces are not allowed in variable name

II.

int price;

price=10;

price=price*2;

price=price-5;