Programming and Problem Solving with Java

737

Chapter 12 Exam Preparation Exercises

2. a.col 0 1 2
   row
   0000
   1012
   2024
   3036
   b.col 0 1 2
   row
   0012
   1120
   2201
   3UUU
   c. col 0 1
   row
   023
   123
   223
   323
   423
   523
   623
   745


3. a.boolean[][] myArray = new boolean[ 5 ][ 6 ];
   b.double[][] MyArray = new double[ 40 ][ 200 ];
   c. char[][] myArray = new char[ 4 ][ 3 ];


4. a.1.4E+12
   b.100.0
   c. 3.2E+5


5. a.The mantissais the part of the floating-point number that contains the
   representable significant digits.
   b. The exponentis the part of the floating-point number that determines where
   the decimal point is placed relative to the mantissa.
   c. Representational erroris an arithmetic error that occurs when the precision of
   the true result of an arithmetic operation is greater than the precision of the
   machine.
   d.Significant digitsare those digits from the first nonzero digit on the left to the
   last nonzero digit on the right (plus any zero digits that are exact).