Android Kotlin & Java Code for Stock Average Calculator [Full Source Code]

Looking for ready-to-use Android code to build a stock average calculator? Check out our collection of Kotlin and Java code snippets that can help you create a user-friendly app to calculate stock average prices. With these code examples, you can easily retrieve user input, perform calculations, and display results using text views, edit text views, buttons, and other UI components. Use our code snippets as a starting point for your project, or modify them to fit your specific needs. Whether you’re a beginner or an experienced Android developer, these code examples can save you time and help you build a high-quality stock average calculator app.

Here is simple code to calculate stocks average using android Kotlin and Java code. You can check demo website for PHP code and Source code for PHP stock average calculator

Kotlin Code

package com.insertcart.adavancecal.ui

import android.os.Bundle
import android.widget.Button
import android.widget.EditText
import android.widget.TextView
import androidx.appcompat.app.AppCompatActivity
import androidx.navigation.ui.AppBarConfiguration
import com.insertcart.adavancecal.R
import com.insertcart.adavancecal.databinding.ActivityStockavgBinding

class StockavgActivity : AppCompatActivity() {

    private lateinit var quantityArray: Array<EditText>
    private lateinit var priceArray: Array<EditText>
    private lateinit var resultText: TextView
    private lateinit var totalcostText: TextView
    private lateinit var totalshareText: TextView

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_stockavg)

        val quantity1 = findViewById<EditText>(R.id.quantity1)
        val quantity2 = findViewById<EditText>(R.id.quantity2)
        val quantity3 = findViewById<EditText>(R.id.quantity3)
        val quantity4 = findViewById<EditText>(R.id.quantity4)
        val quantity5 = findViewById<EditText>(R.id.quantity5)
        val quantity6 = findViewById<EditText>(R.id.quantity6)
        val quantity7 = findViewById<EditText>(R.id.quantity7)
        val quantity8 = findViewById<EditText>(R.id.quantity8)
        val quantity9 = findViewById<EditText>(R.id.quantity9)
        val quantity10 = findViewById<EditText>(R.id.quantity10)

        val price1 = findViewById<EditText>(R.id.price1)
        val price2 = findViewById<EditText>(R.id.price2)
        val price3 = findViewById<EditText>(R.id.price3)
        val price4 = findViewById<EditText>(R.id.price4)
        val price5 = findViewById<EditText>(R.id.price5)
        val price6 = findViewById<EditText>(R.id.price6)
        val price7 = findViewById<EditText>(R.id.price7)
        val price8 = findViewById<EditText>(R.id.price8)
        val price9 = findViewById<EditText>(R.id.price9)
        val price10 = findViewById<EditText>(R.id.price10)

        quantityArray = arrayOf(quantity1, quantity2, quantity3, quantity4, quantity5, quantity6, quantity7, quantity8, quantity9, quantity10)
        priceArray = arrayOf(price1, price2, price3, price4, price5, price6, price7, price8, price9, price10)
        resultText = findViewById(R.id.resultText)
        totalcostText = findViewById(R.id.totalcostText)
        totalshareText = findViewById(R.id.totalshareText)

        val calculateButton: Button = findViewById(R.id.calculateButton)
        calculateButton.setOnClickListener {
            val quantityArray = arrayOf(quantity1, quantity2, quantity3, quantity4, quantity5, quantity6, quantity7, quantity8, quantity9, quantity10)
            val priceArray = arrayOf(price1, price2, price3, price4, price5, price6, price7, price8, price9, price10)

            var totalValue = 0.0
            var totalQuantity = 0
            for (i in 0 until quantityArray.size) {
                val quantity = quantityArray[i].text.toString().toIntOrNull() ?: 0
                val price = priceArray[i].text.toString().toDoubleOrNull() ?: 0.0
                totalValue += quantity * price
                totalQuantity += quantity
            }

            val averagePrice = if (totalQuantity == 0) {
                0.0
            } else {
                totalValue / totalQuantity
            }

            resultText.text = getString(R.string.average_price, averagePrice)
            totalcostText.text = totalValue.toString()
            totalshareText.text = totalQuantity.toString()
        }
    }
}

Java Code

package com.insertcart.adavancecal.ui;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

import com.insertcart.adavancecal.R;

public class StockavgActivity extends AppCompatActivity {

private EditText[] quantityArray;
private EditText[] priceArray;
private TextView resultText;
private TextView totalcostText;
private TextView totalshareText;

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

EditText quantity1 = findViewById(R.id.quantity1);
EditText quantity2 = findViewById(R.id.quantity2);
EditText quantity3 = findViewById(R.id.quantity3);
EditText quantity4 = findViewById(R.id.quantity4);
EditText quantity5 = findViewById(R.id.quantity5);
EditText quantity6 = findViewById(R.id.quantity6);
EditText quantity7 = findViewById(R.id.quantity7);
EditText quantity8 = findViewById(R.id.quantity8);
EditText quantity9 = findViewById(R.id.quantity9);
EditText quantity10 = findViewById(R.id.quantity10);

EditText price1 = findViewById(R.id.price1);
EditText price2 = findViewById(R.id.price2);
EditText price3 = findViewById(R.id.price3);
EditText price4 = findViewById(R.id.price4);
EditText price5 = findViewById(R.id.price5);
EditText price6 = findViewById(R.id.price6);
EditText price7 = findViewById(R.id.price7);
EditText price8 = findViewById(R.id.price8);
EditText price9 = findViewById(R.id.price9);
EditText price10 = findViewById(R.id.price10);

quantityArray = new EditText[]{quantity1, quantity2, quantity3, quantity4, quantity5, quantity6, quantity7, quantity8, quantity9, quantity10};
priceArray = new EditText[]{price1, price2, price3, price4, price5, price6, price7, price8, price9, price10};
resultText = findViewById(R.id.resultText);
totalcostText = findViewById(R.id.totalcostText);
totalshareText = findViewById(R.id.totalshareText);

Button calculateButton = findViewById(R.id.calculateButton);
calculateButton.setOnClickListener(view -> {

EditText[] quantityArray = new EditText[]{quantity1, quantity2, quantity3, quantity4, quantity5, quantity6, quantity7, quantity8, quantity9, quantity10};
EditText[] priceArray = new EditText[]{price1, price2, price3, price4, price5, price6, price7, price8, price9, price10};

double totalValue = 0.0;
int totalQuantity = 0;
for (int i = 0; i < quantityArray.length; i++) {
int quantity = Integer.parseInt(quantityArray[i].getText().toString());
double price = Double.parseDouble(priceArray[i].getText().toString());
totalValue += quantity * price;
totalQuantity += quantity;
}

double averagePrice;
if (totalQuantity == 0) {
averagePrice = 0.0;
} else {
averagePrice = totalValue / totalQuantity;
}

resultText.setText(getString(R.string.average_price, averagePrice));
totalcostText.setText(String.valueOf(totalValue));
totalshareText.setText(String.valueOf(totalQuantity));
}
}
}

XML File

<?xml version="1.0" encoding="utf-8"?>
    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:tools="http://schemas.android.com/tools"
        android:id="@+id/activity_main"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:padding="16dp"
        tools:context=".ui.StockavgActivity">
     <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical"
        android:padding="16dp">

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="@string/enter_the_quantity" />

        <ScrollView
            android:layout_width="match_parent"
            android:layout_height="0dp"
            android:layout_weight="1">

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:orientation="vertical">

                <TextView
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:text="Stock 1:" />

                <LinearLayout
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:orientation="horizontal">

                    <EditText
                        android:id="@+id/quantity1"
                        android:layout_width="0dp"
                        android:layout_height="wrap_content"
                        android:layout_weight="1"
                        android:hint="Quantity" />

                    <EditText
                        android:id="@+id/price1"
                        android:layout_width="0dp"
                        android:layout_height="wrap_content"
                        android:layout_weight="1"
                        android:hint="Price" />
                </LinearLayout>

                <TextView
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:text="Stock 2:" />

                <LinearLayout
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:orientation="horizontal">

                    <EditText
                        android:id="@+id/quantity2"
                        android:layout_width="0dp"
                        android:layout_height="wrap_content"
                        android:layout_weight="1"
                        android:hint="Quantity" />

                    <EditText
                        android:id="@+id/price2"
                        android:layout_width="0dp"
                        android:layout_height="wrap_content"
                        android:layout_weight="1"
                        android:hint="Price" />
                </LinearLayout>

                <TextView
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:text="Stock 3:" />

                <LinearLayout
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:orientation="horizontal">

                    <EditText
                        android:id="@+id/quantity3"
                        android:layout_width="0dp"
                        android:layout_height="wrap_content"
                        android:layout_weight="1"
                        android:hint="Quantity" />

                    <EditText
                        android:id="@+id/price3"
                        android:layout_width="0dp"
                        android:layout_height="wrap_content"
                        android:layout_weight="1"
                        android:hint="Price" />
                </LinearLayout>

                <TextView
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:text="Stock 4:" />

                <LinearLayout
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:orientation="horizontal">

                    <EditText
                        android:id="@+id/quantity4"
                        android:layout_width="0dp"
                        android:layout_height="wrap_content"
                        android:layout_weight="1"
                        android:hint="Quantity" />

                    <EditText
                        android:id="@+id/price4"
                        android:layout_width="0dp"
                        android:layout_height="wrap_content"
                    android:layout_weight="1"
                    android:hint="Price" />
                </LinearLayout>
                <TextView
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:text="Stock 5:" />

                <LinearLayout
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:orientation="horizontal">

                    <EditText
                        android:id="@+id/quantity5"
                        android:layout_width="0dp"
                        android:layout_height="wrap_content"
                        android:layout_weight="1"
                        android:hint="Quantity" />

                    <EditText
                        android:id="@+id/price5"
                        android:layout_width="0dp"
                        android:layout_height="wrap_content"
                        android:layout_weight="1"
                        android:hint="Price" />
                </LinearLayout>

                <TextView
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:text="Stock 6:" />

                <LinearLayout
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:orientation="horizontal">

                    <EditText
                        android:id="@+id/quantity6"
                        android:layout_width="0dp"
                        android:layout_height="wrap_content"
                        android:layout_weight="1"
                        android:hint="Quantity" />

                    <EditText
                        android:id="@+id/price6"
                        android:layout_width="0dp"
                        android:layout_height="wrap_content"
                        android:layout_weight="1"
                        android:hint="Price" />
                </LinearLayout>

                <TextView
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:text="Stock 7:" />

                <LinearLayout
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:orientation="horizontal">

                    <EditText
                        android:id="@+id/quantity7"
                        android:layout_width="0dp"
                        android:layout_height="wrap_content"
                        android:layout_weight="1"
                        android:hint="Quantity" />

                    <EditText
                        android:id="@+id/price7"
                        android:layout_width="0dp"
                        android:layout_height="wrap_content"
                        android:layout_weight="1"
                        android:hint="Price" />
                </LinearLayout>

                <TextView
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:text="Stock 8:" />

                <LinearLayout
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:orientation="horizontal">

                    <EditText
                        android:id="@+id/quantity8"
                        android:layout_width="0dp"
                        android:layout_height="wrap_content"
                        android:layout_weight="1"
                        android:hint="Quantity" />

                    <EditText
                        android:id="@+id/price8"
                        android:layout_width="0dp"
                        android:layout_height="wrap_content"
                        android:layout_weight="1"
                        android:hint="Price" />
                </LinearLayout>
                <TextView
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:text="Stock 9:" />

                <LinearLayout
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:orientation="horizontal">

                    <EditText
                        android:id="@+id/quantity9"
                        android:layout_width="0dp"
                        android:layout_height="wrap_content"
                        android:layout_weight="1"
                        android:hint="Quantity" />

                    <EditText
                        android:id="@+id/price9"
                        android:layout_width="0dp"
                        android:layout_height="wrap_content"
                        android:layout_weight="1"
                        android:hint="Price" />
                </LinearLayout>

                <TextView
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:text="Stock 10:" />

                <LinearLayout
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:orientation="horizontal">

                    <EditText
                        android:id="@+id/quantity10"
                        android:layout_width="0dp"
                        android:layout_height="wrap_content"
                        android:layout_weight="1"
                        android:hint="Quantity" />

                    <EditText
                        android:id="@+id/price10"
                        android:layout_width="0dp"
                        android:layout_height="wrap_content"
                        android:layout_weight="1"
                        android:hint="Price" />
                </LinearLayout>

            </LinearLayout>
        </ScrollView>

        <Button
            android:id="@+id/calculateButton"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="Calculate Average Price" />

        <TextView
            android:id="@+id/averagePriceText"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:gravity="start"
            android:textAppearance="?android:textAppearanceLarge" />
        <TextView
            android:id="@+id/resultText"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:gravity="center"
            android:textAppearance="?android:textAppearanceLarge" />

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal">

            <TextView
                android:id="@+id/totalcostTxt"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:text="@string/total_price_of_stocks"
                android:textAppearance="?android:textAppearanceLarge" />
            <TextView
                android:id="@+id/totalcostText"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:textAppearance="?android:textAppearanceLarge" />

        </LinearLayout>
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal">

            <TextView
                android:id="@+id/totalshareTxt"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:text="@string/total_numbers_of_stocks"
                android:textAppearance="?android:textAppearanceLarge" />
            <TextView
                android:id="@+id/totalshareText"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:textAppearance="?android:textAppearanceLarge" />

        </LinearLayout>
    </LinearLayout>
</RelativeLayout>

Strings

Download full code and View on github here