[Android] Menu

package kr.priv.logManagement; 
  
import android.app.Activity; 
import android.content.Intent; 
import android.os.Bundle; 
import android.view.Menu; 
import android.view.MenuItem; 
  
public class AT_main extends Activity { 
  
    @Override
    public void onCreate(Bundle savedInstanceState) { 
        super.onCreate(savedInstanceState); 
        setContentView(R.layout.layout_main);        
    } 
  
    @Override
    public boolean onCreateOptionsMenu(Menu menu) { 
        getMenuInflater().inflate(R.menu.layout_main, menu); 
        return true; 
    } 
      
    public boolean onOptionsItemSelected(MenuItem item) { 
        switch (item.getItemId()) { 
        case R.id.menu_settings: 
            Intent intent = new Intent(this, AT_logManagement.class); 
            startActivity(intent); 
            return true; 
        default: 
            return super.onOptionsItemSelected(item); 
        } 
    } 
  
      
}