Stack for labwork

Stack.java

package org.uzhnu.homework.stack;

public class Stack {
	
	private String [] strArray; //new arr
	private int currEl; //pointer to Stack top
	private static int defaultSize=10;
	
	Stack(){
		this.strArray = new String[defaultSize];
		this.currEl=0;
	}
	
	Stack(String [] mas){
		this.strArray = mas;
		this.currEl=strArray.length-1;
	}
	
	public boolean push(String string)throws Exception{
		if(currEl==strArray.length-1)
		  throw new Exception("Stack is Overflowed!");
				
		strArray[++currEl] = string;
		return true;
	}
	
	public String pop()throws Exception{
		if(currEl==0)
		     throw new Exception("Stack is empty!");
		return strArray[currEl--];
	}

	
}