Mobile Application Development Practical 11
Question 1
Write a program to show five checkboxes and toast selected checkboxes.
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:layout_marginTop="50dp"
android:layout_marginLeft="40dp">
<TextView
android:id="@+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Select names of states from below"
android:textColor="@color/purple_700"
android:textSize="20dp"/>
<CheckBox
android:id="@+id/mah"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Maharashtra"
android:layout_marginTop="10dp"/>
<CheckBox
android:id="@+id/guj"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Gujrat" />
<CheckBox
android:id="@+id/kar"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Karnataka" />
<CheckBox
android:id="@+id/tamil"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Tamil Nadu" />
<CheckBox
android:id="@+id/goa"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Goa" />
<Button
android:id="@+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Submit"
android:layout_marginLeft="8dp"/>
</LinearLayout>
</androidx.constraintlayout.widget.ConstraintLayout>MainActivity.java
package com.example.practical11;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity {
CheckBox ch1,ch2,ch3,ch4,ch5;
Button b;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
b=findViewById(R.id.button);
ch1=findViewById(R.id.mah);
ch2=findViewById(R.id.guj);
ch3=findViewById(R.id.kar);
ch4=findViewById(R.id.tamil);
ch5=findViewById(R.id.goa);
View.OnClickListener cl=new View.OnClickListener() {
@Override
public void onClick(View view) {
String msg="";
if(ch1.isChecked())
msg=msg+"Maharashtra";
if(ch2.isChecked())
msg=msg+",Gujrat";
if(ch3.isChecked())
msg=msg+",Karnataka";
if(ch4.isChecked())
msg=msg+",Tamil Nadu";
if(ch5.isChecked())
msg=msg+",Goa";
Toast.makeText(MainActivity.this,msg+" is selected",Toast.LENGTH_LONG).show();
}
};
b.setOnClickListener(cl);
}
}Output
