CS202 Java-173
Thinking in C ©2000 MindView,
Inc.
173
Let’s build a stack class
public class Stack {
private int[]
data;
private int ptr;
public Stack(int
size) {
data = new
int[size];
ptr = 0;
}
public void
push(int x) {
if (ptr <
data.length)
data[ptr++] = x;
}