Consider the following interface:
// a CBListADT is a cursor based list of char
// a newly created CBListADT is empty (contains no elements)
public interface CBListADT {
// get the current element
public char get();
// insert c before the current element
public void insert(char c);
// remove the current element. return true if it was possible to do, false if not
public boolean remove();
// move the cursor so that the first element is the current element
public void moveToFirst();
// move the cursor to the next element, returning true if the move succeeded
// and false if it is not possible to move to the next element
public boolean goNext();
}
Type your answers in the lines indicated by A1, A2, ... A7. Add lines if needed.
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Q1.
Write a problem instance that describes the behavior of the remove()
method when the CBListADT has the following initial state:
< a | b, c >
A1:
• The remove () method removes the element in the specified list of CBListADT interface.
• If the initial state is
then the CBListADT interface create the problem for
• bitwise or operation for giving the true false condition in the remove() method.
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Q2.
Write one sentence that explains your problem instance.
A2:
• For the condition the instance variable gives the condition for non-static
variables which is basically defined outside the class interface.
• So In the above example the is not defined in the remove() method.
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Q3.
Write a JUnit test method that implements your problem instance. Assume that a class
named CBListRaIMP exists that implements CBListADT. Assume all the methods
are implemented.
A3:
package com.java.testcase;
import static org.junit.Assert.*;
import org.junit.Test;
public class CBListRaIMPTest
{
public CBListRaIMP createInstance();
@Test
default void testCBListRaIMP_True()
{
CBListRaIMP instance = createInstance();
assertTrue(instance.CBListRaIMP(true));
}
@Test
default void testCBListRaIMP_False()
{
CBListRaIMP instance =...