package com.example.firstproject; import android.os.Bundle; import android.app.Activity; import android.content.Intent; import android.view.Menu; import android.view.View; import android.widget.Button; import android.widget.TextView; public class MainActivity extends Activity { Button submitBtn; TextView label; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); submitBtn = (Button)findViewById(R.id.submitBtn); submitBtn.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { submitClk(v); } }); label = (TextView)findViewById(R.id.label); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; } public void submitClk(View v) { label.setText("You clicked me"); Intent intent = new Intent(this, SecondActivity.class); startActivityForResult(intent, 0); } }