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Copy pathMyStack.java
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70 lines (58 loc) · 1.28 KB
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package stack;
import array.MyArray;
public class MyStack {
MyArray arrayStack;
int top;
public MyStack() {
top = 0;
arrayStack = new MyArray();
}
public MyStack(int size) {
top = 0;
arrayStack = new MyArray(size);
}
public void push(int data) {
if(isFull()) {
System.out.println("stack is full");
return;
}
arrayStack.addElement(data);
top++;
}
public int pop() {
if(isEmpty()) {
System.out.println("stack is empty");
return MyArray.ERROR_NUM;
}
return arrayStack.removeElement(--top);
}
public int peek() {
if(isEmpty()) {
System.out.println("stack is empty");
return MyArray.ERROR_NUM;
}
return arrayStack.getElement(top-1);
}
public boolean isFull() {
if(top == arrayStack.ARRAY_SIZE) {
return true;
}
else {
return false;
}
}
public boolean isEmpty() {
if(top == 0) {
return true;
}
else {
return false;
}
}
public void printAll() {
arrayStack.printAll();
}
public int getSize() {
return top;
}
}