// HPCalculator Problem
// Source code file: MainActivity.java

package it372.hpcalculator;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import java.util.Stack;

public class MainActivity extends AppCompatActivity {
    private long displayBuffer = 0;
    private Stack<Long> stack = new Stack<Long>( );

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

    // Click event handler for all digit buttons.
    public void onClickDigit(View view) {

    }

    // Enter button pushes a long onto the stack.
    public void onClickEnter(View view) {

    }

    // C button sets the display to zero
    public void onClickClear(View view) {

    }

    // CA button clears both the display
    // and the stack
    public void onClickClearAll(View view) {

    }

    // + button adds display and top of stack,
    // popping the stack and placing the sum 
    // in the display
    public void onClickAdd(View view) {

    }

    // - button subtracts display from top of stack,
    // popping the stack and placing the difference 
    // in the display
    public void onClickSubt(View view) {

    }

    // * button multiplies display and top of stack,
    // popping the stack and placing the product 
    // in the display
    public void onClickMult(View view) {

    }

    // / button divides display by top of stack,
    // popping the stack and placing the quotient
    // in the display; what should you do if
    // divide by zero occurs?
    public void onClickDivide(View view) {

    }
}