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Java Programming - Language Fundamentals

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Exercise

"Everything should be made as simple as possible, but not simpler."
- 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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