Intent demo pass with text demo in Android

•  First Create Two acitvity
•  layout file name
•  firstscreen.xml
•  second_screen.xml 
•  java filename
•  FirstScreen.java
•  SecondScreen.java

firstscreen.xml

<?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/firstscreen"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.example.krbutani.intentpasswithdatademo.Firstscreen">

<Button
android:text="Goto Second"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:id="@+id/btnsecond" />

</RelativeLayout>

FirstScreen.java

import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;

public class Firstscreen extends AppCompatActivity {

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

        second = (Button) findViewById(R.id.btnsecond);

        second.setOnClickListener(new View.OnClickListener() {
            @Override            public void onClick(View v) {
                Intent intent1 = new Intent(Firstscreen.this,SecondScreen.class);
                intent1.putExtra("first_name","kartik");
                intent1.putExtra("last_name","butani");

                startActivityForResult(intent1,1);
            }
        });
    }
}

second_screen.xml

 
 <?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/second_screen"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.krbutani.intentpasswithdatademo.SecondScreen">

    <Button
        android:text="Goto First"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:id="@+id/btnfirst" />

    <TextView

        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/lbldata"
        android:layout_below="@+id/btnfirst"
        android:layout_alignParentLeft="true"

 android:layout_alignParentStart="true"

 android:textSize="30sp" />

</RelativeLayout>

SecondScreen.java

import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

public class SecondScreen extends AppCompatActivity {

    TextView lbldata;
    Button btnfirst;

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


        Intent intent2 = getIntent();
        Bundle e = intent2.getExtras();
        String firstname = e.getString("first_name").toString();
        String lastname = e.getString("last_name").toString();
        lbldata = (TextView) findViewById(R.id.lbldata);
        lbldata.setText(firstname + "\n" + lastname);

        btnfirst = (Button) findViewById(R.id.btnfirst);

        btnfirst.setOnClickListener(new View.OnClickListener() {
            @Override            public void onClick(View v) {
                Intent intent1 = new Intent(SecondScreen.this,Firstscreen.class);
                startActivity(intent1);
            }
        });

    }

}