Literal can be of which of these data types?

Literal can be of which of these data types?

integer

float

boolean

all of the mentioned

Answer : D

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1) Which one is a valid declaration of a boolean?

2) Which of these occupy first 0 to 127 in Unicode character set used for characters in Java?

ASCII

ISO-LATIN-1

None of the mentioned

ASCII and ISO-LATIN1

3) Which of these values can a boolean variable contain?

True & False

0 & 1

Any integer value

true

4) In Java, the word true is ................

A Java keyword

A Boolean literal

Same as value 1

Same as value 0

5) Which of these can not be used for a variable name in Java?

identifier

keyword

identifier & keyword

none of the mentioned