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Java Programming - Language Fundamentals

@ : Home > Java Programming > Language Fundamentals > General Questions

Exercise

"The secret to creativity is knowing how to hide your sources."
- Albert Einstein
1. 

Which four options describe the correct default values for array elements of the types indicated?

  1. int -> 0
  2. String -> "null"
  3. Dog -> null
  4. char -> '\u0000'
  5. float -> 0.0f
  6. boolean -> true
A. 1, 2, 3, 4B. 1, 3, 4, 5
C. 2, 4, 5, 6D. 3, 4, 5, 6
2. 

Which one of these lists contains only Java programming language keywords?
A. class, if, void, long, Int, continue
B. goto, instanceof, native, finally, default, throws
C. try, virtual, throw, final, volatile, transient
D. strictfp, constant, super, implements, do
E. byte, break, assert, switch, include
3. 

Which will legally declare, construct, and initialize an array?
A. int [] myList = {"1", "2", "3"};
B. int [] myList = (5, 8, 2);
C. int myList [] [] = {4,9,7,0};
D. int myList [] = {4, 3, 7};
4. 

Which is a reserved word in the Java programming language?
A. methodB. native
C. subclassesD. reference
E. array
5. 

Which is a valid keyword in java?
A. interfaceB. string
C. FloatD. unsigned

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