Practice Problems

Which of the following can be used in a Java program as identifiers? Check all of the

identifiers that are legal. ${?}_{(}).$

a$.,B4$

b$.,$ABC

c$.$ "hello"

d$.\_$average

e$.$ for

f$.$ first$-$name

g$.,$ sum$\_$of$\_$data

h$.$ AnnualSalary

i$.$ println

j$.42$isThesolution