Use shared preferences in checkbox to make checked for always when button is clicked

I am using shared preferences to make the ckeckbox checked for always when button is clicked. But I'm getting errors, unknown type 'getChecked'. , code is givenbellow:

@Override
protected void onCreate(Bundle savedInstanceState)
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final SharedPreferences sharedPreferences
this.getSharedPreferences("pref", 0);
boolean checkedSearch = sharedPreferences.getBoolean("checkedSearch", false);
Button button = (Button) dialog.findViewById(R.id.button);   
final CheckBox  checkBox1  = (CheckBox) dialog.findViewById(R.id.checkBox1);
checkBox1.setChecked(checkedSearch ? true : false );
button.setOnClickListener(new View.OnClickListener(){

@Override
public void onClick(View v){
if(
checkBox1.geChecked()==false){
checkBox1.setChecked(true);
SharedPreferences.Editor editor = sharedPreferences.edit();  
editor.putBoolean("checkedSearch",true)
.commit();
}