package com.nsu.hpcalc;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Spinner;
import android.widget.TextView;

public class calcactivity extends Activity
{
    EditText tcarprice,tinterest,tdownpayment;
    TextView tinstallment;
    Button btncalc;
    Spinner syears;
    public void onCreate(Bundle b)
    {
        super.onCreate(b);
        setContentView(R.layout.calclayout);
        tcarprice=findViewById(R.id.tcarprice);
        tinterest=findViewById(R.id.tinterest);
        tdownpayment=findViewById(R.id.tdownpayment);
        tinstallment=findViewById(R.id.tinstallment);
        btncalc=findViewById(R.id.btncalculate);
        syears=findViewById(R.id.syears);
        Integer[] years = new Integer[]{1,2,3,4,5,6,7,8,9};
        ArrayAdapter<Integer> adapter = new ArrayAdapter<Integer>(this,android.R.layout.simple_spinner_item, years);
        syears.setAdapter(adapter);
        btncalc.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                double carprice,interest,downpayment,installment;
                int years;
                carprice=Double.parseDouble(tcarprice.getText().toString());
                interest=Double.parseDouble(tinterest.getText().toString());
                downpayment=Double.parseDouble(tdownpayment.getText().toString());
                years=Integer.parseInt(syears.getSelectedItem().toString());
                installment=(((((carprice-downpayment)*interest)/100)*years)+(carprice-downpayment))/(years*12);
                tinstallment.setText(String.valueOf(installment));
            }
        });
    }
}