Question

Java. For C through H True or false?

c. Primitive variables must be objects.

d. Integer x; generates a compile time error.

e. Integer y = new Integer(); generates a compile time error.

f. Integer z = new Integer(3); generates a compile time error.

g. Integer u = new Integer(3.14); generates a compile time error.

h. Integer w = new Integer("345"); generates a compile time error.

1.) What is true of classes that can be used with the enhanced for loop? ___

a.    All classes can use the enhanced for loop.

b.    Only ArrayList can use the enhanced for loop.

c.    Only ArrayList and arrays can use the enhanced for loop.

d.    Any class that implements Iterable can use the enhanced for loop.

Answer 1

c. Primitive variables must be objects.
False

d. Integer x; generates a compile time error.
False

e. Integer y = new Integer(); generates a compile time error.
True

f. Integer z = new Integer(3); generates a compile time error.
False

g. Integer u = new Integer(3.14); generates a compile time error.
True

h. Integer w = new Integer("345"); generates a compile time error.
False

1)
d. Any class that implements Iterable can use the enhanced for loop.