MCQ - Review and Missed Questions

Multiple Choice Quiz

1. integer vs float w/ decimal point, cast correctly
2. functions with same name and different parameter types are OK
3. check for null: cannot call equals on thing that doesn’t exist
4. .add(POS, VALUE)
5. substring “01234” can take 5 because does not include 5
6. polymorphic variables
7. int[3][4] has a list of 3 lists of 4 elements
8. implements
9. == compares references → “hello” == “hello” but “hello” != new String(“hello”)
10. .equals compares content
11. call to statement must be first in constructor
12. ((Dog) animal2).getBreed() not (Dog) animal2.getBreed()
13. single quotes for char
14. x.0 for floats and doubles