Computers and Technology, 19.12.2019 22:31 ambersaoulisoulfd1
Consider the abstract superclass below:
public abstract class foo
{
private int a;
public int b;
public foo( int aval, int bval )
{
a = aval;
b = bval;
} // end foo constructor
public abstract int calculate();
} // end class foo
any concrete subclass that extends class foo:
1) must implement a method called calculate.
2) will not be able to access the instance variable a.
3) neither (a) nor (b).
4) both (a) and (b).
Answers: 3
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Consider the abstract superclass below:
public abstract class foo
{
private int a...
public abstract class foo
{
private int a...
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