package com.example.myapplication;

        import android.os.Bundle;
        import android.support.v7.app.AppCompatActivity;
        import android.widget.TextView;

public class MainActivity extends AppCompatActivity {
    TextView textView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        textView = findViewById(R.id.text);
        textView.setText("Current thread: " + Thread.activeCount());
    }

}
