Question

Which cause a compiler error?

a. int[ ] scores = {3, 5, 7};

b. int [ ][ ] scores = {2,7,6}, {9,3,45};

c. string cats[ ] = {"fluffy", "spot", "zeus"};

d. boolean results[ ] = new boolean [] {true, false, true};

e. integer results[ ] = {new integer(3), new integer(5), new integer(8)};?

Answer 1

The following are valid initializations in Java.

a. int[ ] scores = {3, 5, 7};   #integer array

c. String cats[ ] = {"fluffy", "spot", "zeus"};  #String array

d. boolean results[ ] = new boolean [] {true, false, true};  # boolean array

e. Integer results[ ] = {new Integer(3), new Integer(5), new Integer(8)}; # Integer array

But the initialization

b. int [ ][ ] scores = {2,7,6}, {9,3,45};  is incorrect. The correct  initialization is

int [ ][ ] scores = {{2,7,6}, {9,3,45}};

Hence (b) causes a compile time error.

Answer 2

Answer:

B is the correct answer in the following