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myButton.setOnClickListener(new View.OnClickListener() {
    public void onClick(View v) {
        SimpleDateFormat formatter = new SimpleDateFormat("h:mm:ss a");
        String strWhen = formatter.format(new Date());               
        TextView myTextview = (TextView) 
            findViewById(R.id.TextViewToShow);
        myTextview.setText("Clicked at " +  strWhen);
    }
});

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final TextView firstTextView = (TextView) findViewById(R.id.textView);
final Button firstButton = (Button) findViewById(R.id.firstButton);

// ACA escribir View.OnClickListener(){   Y APRETAR CTRL+i
        firstButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                firstTextView.setText("You clicked!");
            }
        });

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String usersName = String.valueOf(usersNameEditText.getText());

Toast.makeText(this, yourYesResponse, Toast.LENGTH_SHORT).show();

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Integer iNum = new Integer(123);
String sText = "The number one-two-three = ";
String sFullText = sText + iNum; // aca llama al toString, es al pedo ponerlo o no.

   /**
     * This method simply throws an Exception if the incoming parameter a is not a positive    number, just for fun.
     * 
     * @param shouldThrow Whether or not to throw an exception
     * @throws Exception
     */

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import android.app.Activity;


String strClassName = Activity.class.getName();    // android.app.Activity

String silly = "Silly String!";
Class someKindOfClass = silly.getClass();
String strSillyClassName = someKindOfClass.getName();    // java.lang.String

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<resources>
    <string name="app_name">My Android App Name!</string>
</resources>

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How to squash commits

1. Rebase using interactive editor. N = last N commits to be squashed into one commit.

 > git rebase -i HEAD~N

2. Let the first commit marked with "pick". Then "squash" the rest. Use "fixup" to discard that particular commit message.

3. Force push

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Keep a fork in sync with upstream in git

1. Add a new remote to point to the upstream repo:

 > git remote add upstream git://github.com/USERNAME/UPSTREAM-REPO.git

2. Check remotes:

> git remote -v

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{
  "responses": [
    {
      "textAnnotations": [
        {
          "locale": "en",
          "description": "U UnitedHealthcare | e\nHMO\nHealth Plan (80840): 000-00000-00\nMember ID: 000000000 00\nMember:\nMARY SMITH\nGroup Number: 000000\nPayer ID 12345 EM. Date:01.01/2011\nOPTUMR\nCopys\nOfice: $15\nRx Bin: 012345\nRx PCN: 9789\nRx Grp: AAAA\nER S50\nSignatureValue HMO\nOffered by UnitedHealthcare of California\n",
          "boundingPoly": {
            "vertices": [
              {

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{
  "responses": [
    {
      "textAnnotations": [
        {
          "locale": "en",
          "description": "blue\ncolifornia\nPromise\nHealth\nLA Care\nREALTR PL\nPlan\nMember: FIRST M LAST\nMember ID: 000000000000\nCIN:\n000000000\nHealth Plan Group #:\n00000000\nEffective Date:\n04/01/2019\nPRIMARY CARE IPA\nPRIMARY CARE PHYSICIAN\n(000) 000-0000\n0000 STREET\nCITY, STATE\nZIP\n",
          "boundingPoly": {
            "vertices": [
              {