Wrapper classes are provided for all primitive Java types except Boolean.
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Q18: All of the following are wrapper classes
Q19: In a static method,you may use the
Q20: Static variables are often used:
A)in arithmetic expressions
B)to
Q21: All versions of Java support automatic boxing.
Q22: Write a statement that creates and initializes
Q24: Wrapper classes provide a class type corresponding
Q25: The String class is a mutable class.
Q26: Write a Java method that returns true
Q27: Define boxing and unboxing.
Q28: To use a package,the program must contain
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