Ex_8_CheckBox

Develop a program to create a option menu using checkboxes and display the toast selected checkboxes with Android Studio

AIM:

To Develop a program for creating a option menu using checkboxes and display the toast selected checkboxes with Android Studio.

EQUIPMENTS REQUIRED:

Android Studio(Min. required Artic Fox)

ALGORITHM:

Step 1: Open Android Studio and then click on File -> New -> New project.

Step 2: Then type the Application name as SMSIntent and click Next.

Step 3: Select the Minimum SDK below and click Next.

Step 4: Then select the Empty Activity and click Next. Finally, click Finish.

Step 5: Design layout in activity_main.xml.

Step 6: Once the Selected check box displayed to the user processed in MainActivity.java

Step 7: Save and run the application.

Program:

/*
Program to create an Option Menu
Developed by: ANTO JESSI
RegisterNumber:  212222040009
*/

MainActivity.java:

package com.example.exp8;

import androidx.appcompat.app.AppCompatActivity;

import androidx.appcompat.app.AppCompatActivity;
import android.view.View;
import android.widget.CheckBox;
import android.widget.Toast;
import android.os.Bundle;
import android.os.Bundle;

public class MainActivity extends AppCompatActivity {
    private CheckBox chkAndroid, chkJava, chkPhp, chkCpp, chkC;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);chkAndroid = findViewById(R.id.chkAndroid);
        chkJava = findViewById(R.id.chkJava);
        chkPhp = findViewById(R.id.chkPhp);
        chkCpp = findViewById(R.id.chkCpp);
        chkC = findViewById(R.id.chkC);
    }
    public void showSelected(View view) {

        String selected = "You selected: \n";

        if(chkAndroid.isChecked())
            selected += "Android";

        if(chkJava.isChecked())
            selected += "\nJava";

        if(chkPhp.isChecked())
            selected += "\nPHP";

        if(chkCpp.isChecked())
            selected += "\nCPP";

        if(chkC.isChecked())
            selected += "\nC";

        Toast.makeText(MainActivity.this, selected, Toast.LENGTH_SHORT).show();
    }
}

activity_main.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical"
    android:padding="20dp">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:text="Select Your favourite Programming language"
        style="@style/TextAppearance.AppCompat.Large"
        android:layout_margin="10dp"
        android:textStyle="bold"/>

    <CheckBox
        android:id="@+id/chkAndroid"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Android"
        style="@style/TextAppearance.AppCompat.Headline"/>

    <CheckBox
        android:id="@+id/chkJava"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Java"
        style="@style/TextAppearance.AppCompat.Headline"/>

    <CheckBox
        android:id="@+id/chkPhp"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="PHP"
        style="@style/TextAppearance.AppCompat.Headline"/>

    <CheckBox
        android:id="@+id/chkCpp"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="CPP"
        style="@style/TextAppearance.AppCompat.Headline"/>

    <CheckBox
        android:id="@+id/chkC"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="C"
        style="@style/TextAppearance.AppCompat.Headline"/>

    <Button android:id="@+id/btnDisplay"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Display"
        android:layout_marginTop="20dp"
        android:onClick="showSelected"/>

</LinearLayout>

AndroidMainfest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    package="com.example.exp8">

    <application
        android:allowBackup="true"
        android:dataExtractionRules="@xml/data_extraction_rules"
        android:fullBackupContent="@xml/backup_rules"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/Theme.Exp8"
        tools:targetApi="31">
        <activity
            android:name=".MainActivity"
            android:exported="true">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

Output

Result:

Thus a Simple Android Application to create an check box and display the selected check box using Android Studio was developed and executed successfully.