Java language Use arrays in creating your class. Stack Interface (LIFO) void push(Object) Object pop() String toString() boolean isEmpty() boolean equals(Object) getIndexOf get remove
Java language Use arrays in creating your class.
Stack Interface (LIFO)
- void push(Object)
- Object pop()
- String toString()
- boolean isEmpty()
- boolean equals(Object)
- getIndexOf
- get
- remove
private static void arrayListTests() {
System.out.println("ArrayList Tests");
// todo: make more tests here
ArrayList a = new ArrayList();
System.out.println("Check empty array isEmpty:" + a.isEmpty());
a.insert('B', 0);
a.insert('a', 0);
a.insert('t', 1);
System.out.println("Check non-empty array isEmpty:" + a.isEmpty());
System.out.println(a.toString());
while (a.isEmpty() == false) {
System.out.println(a.remove(0));
}
// Fill over initial capacity and check that it grows
for (int i = 0; i < 110; i++)
{
a.append(new Integer(i));
}
System.out.println("Size of array after 110 adds: "+ a.size());
System.out.println("Value of last element: "+ a.get(a.size()-1));
System.out.println("Insert past end of list");
a.insert('z', 200);
System.out.println("Insert negative index");
a.insert('z', -3);
System.out.println("Remove past end of list");
a.remove(200);
// -----------------------------------------------------------------
// ADDITIONAL TESTS
// Check for equality
ArrayList list1 = new ArrayList();
ArrayList list2 = new ArrayList();
list1.insert("A", 0);
list1.insert("B", 0);
list1.insert("C", 0);
list2.insert("A", 0);
list2.insert("B", 0);
list2.insert("C", 0);
System.out.println("equality true check: " + list1.equals(list2));
list2.remove(1);
list2.insert("D", 0);
System.out.println("equality false check: " + list1.equals(list2));
System.out.println("index of, expecting 1: " + list1.getIndexOf("B"));
System.out.println("index of, expecting -1: " + list1.getIndexOf("J"));
System.out.println("getAt, expecting A: " + list1.get(2));
System.out.println("getAt, expecting error: ");
System.out.println(list1.get(9));
System.out.println("size, expecting 3: " + list1.size());
System.out.println("remove return value, expecting A: " + list1.remove(2));
}
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