Integer Array in TextView

I want to display even numbers from 0 to 50 in a text view, when button is clicked.

package com.example.a206_multithreading_assignment;import androidx.appcompat.app.AppCompatActivity;import android.os.Bundle;import android.view.View;import android.widget.Button;import android.widget.TextView;public class MainActivity extends AppCompatActivity {    TextView even;    Button result;    int[] numbers = new int[50];    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        even = (TextView)findViewById(R.id.even);        result = (Button)findViewById(R.id.result);        result.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                for (int j=0 ; j<50 ; j++)                {                    if (j%2 == 0) {                        even.setText(numbers[j]);                    }                }            }        });    }}

Here is my code. My app got crash at run time.

I searched alot but find information about string arrays not related to integer arrays.I will be thankful, If my issue got resolved.