If an expression contains double, int, float, long, then the whole expression will be promoted into which of these data types?
A. long
B. int
C. double
D. float
Answer: Option C
A. long
B. int
C. double
D. float
Answer: Option C
Which of the following is not a valid identifier for a Java variable?
A. my_var
B. _myVar
C. 3rdVar
D. $var
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