ListView Control Android

ListView Control Android

************************ Main .xml ***********************

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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">

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/btn"
        android:text="List"/>

</LinearLayout>
************************* Main .Java *****************************

package com.example.listview;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {
ListView list;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        list=(ListView)findViewById(R.id.list);
        final String arr[]={"ANDROID ","JAVA","PHP","PHP","HTML","CSS"};
       /* 1st method ArrayAdapter adapter=new ArrayAdapter(MainActivity.this,R.layout.text,arr);
        list.setAdapter(adapter);*/
        ArrayAdapter adapter=new ArrayAdapter(MainActivity.this,R.layout.text,arr);
        list.setAdapter(adapter);
       list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
           @Override
           public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
            /*  2nd String str=((TextView)view).getText().toString();
               Toast.makeText(MainActivity.this, ""+str, Toast.LENGTH_SHORT).show();*/
               String str=((TextView)view).getText().toString();
             switch (position){
                 case 0:
                     Toast.makeText(MainActivity.this, "First "+str, Toast.LENGTH_SHORT).show();
                break;
                 case 1:
                     Toast.makeText(MainActivity.this, "Second "+str, Toast.LENGTH_SHORT).show();
                     break;
                 case 2:
                     Toast.makeText(MainActivity.this, "3rd "+str, Toast.LENGTH_SHORT).show();
                     break;
                 case 3:
                     Toast.makeText(MainActivity.this, "4th "+str, Toast.LENGTH_SHORT).show();
                     break;
             }

           }
       });
    }
}