Explicit Intent in Android

activity_main.xml
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<RelativeLayout 

    xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    tools:context=".MainActivity">


   <Button

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="Call Activity 2"

        android:id="@+id/button"

        android:layout_alignParentTop="true"

        android:layout_centerHorizontal="true"

        android:layout_marginTop="156dp" />

</RelativeLayout>
MainActivity.Java
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ackage com.android.anil.explicitintent;



import android.content.Intent;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.view.Menu;

import android.view.MenuItem;

import android.view.View;

import android.widget.Button;



public class MainActivity extends AppCompatActivity {

Button gosecond;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        gosecond=(Button)findViewById(R.id.button);

        gosecond.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

                Intent in=new Intent(MainActivity.this,SecondActivity.class);

                startActivity(in);

           }

        });

    }

}
Output is:
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