android populer

 < TextView
    android:layout_width="wrap_content"
    android:layout_height="fill_parent"
      android:text="h\ne\nl\nl\no\n w\no\nr\nl\nd" />  

< ?xml version="1.0" encoding="utf-8"?> 
< animation-list android:oneshot="false" xmlns:android="http://schemas.android.com/apk/res/android"> 
     < item android:drawable="@drawable/frame_above95_1" android:duration="30"/> 
    < item android:drawable="@drawable/frame_above95_2" android:duration="30"/> 
    < item android:drawable="@drawable/frame_above95_3" android:duration="30"/> 
    < item android:drawable="@drawable/frame_above95_4" android:duration="30"/> 
    < item android:drawable="@drawable/frame_above95_5" android:duration="30"/> 
    < item android:drawable="@drawable/frame_above95_6" android:duration="30"/> 
    < item android:drawable="@drawable/frame_above95_7" android:duration="30"/> 
    < item android:drawable="@drawable/frame_above95_8" android:duration="30"/> 
    < item android:drawable="@drawable/frame_above95_9" android:duration="30"/> 
    < item android:drawable="@drawable/frame_above95_10" android:duration="30"/> 
    < item android:drawable="@drawable/frame_above95_11" android:duration="30"/> 
    < item android:drawable="@drawable/frame_above95_12" android:duration="30"/> 
    < item android:drawable="@drawable/frame_above95_13" android:duration="30"/> 
    < item android:drawable="@drawable/frame_above95_14" android:duration="30"/> 
    < item android:drawable="@drawable/frame_above95_15" android:duration="30"/> 
    < item android:drawable="@drawable/frame_above95_16" android:duration="30"/> 
    < item android:drawable="@drawable/frame_above95_17" android:duration="30"/> 
    < item android:drawable="@drawable/frame_above95_18" android:duration="30"/> 
   < /animation-list> 

img1.setBackgroundResource(R.layout.animation_above95);         
AnimationDrawable anim=(AnimationDrawable)img1.getBackground();
anim.start();

    Bitmap bmImg;
    ImageView img1;
@Override
protected void onCreate(Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    super.onCreate(savedInstanceState);
    setContentView(R.layout.sending_card);
    img1=(ImageView) findViewById(R.id.imageView1);
    String url="http://i.123g.us/c/efeb_valen_happy/card/107397.gif";
    downloadFile(url);
  }
void downloadFile(String fileUrl){
      URL myFileUrl =null;         
        try {
                 myFileUrl= new URL(fileUrl);
              } catch (MalformedURLException e) {
                   // TODO Auto-generated catch block
              e.printStackTrace();
      }
      try {
          HttpURLConnection conn=   
                            (HttpURLConnection)myFileUrl.openConnection();
               conn.setDoInput(true);
               conn.connect();
               InputStream is = conn.getInputStream();
               bmImg = BitmapFactory.decodeStream(is);
               img1.setImageBitmap(bmImg);
           } catch (IOException e) {
             // TODO Auto-generated catch block
             e.printStackTrace();
      }}  

See more basics on Android along with interview questions

public class MainActivity extends Activity {
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    ViewPager viewPager = (ViewPager)findViewById(R.id.view_pager);
    ImagePagerAdapter adapter = new ImagePagerAdapter();
    viewPager.setAdapter(adapter);
  }
  private class ImagePagerAdapter extends PagerAdapter {
    private int[] mImages = new int[] {
        R.drawable.chiang_mai,
        R.drawable.himeji,
        R.drawable.petronas_twin_tower,
        R.drawable.ulm
    };
    @Override
    public int getCount() {
      return mImages.length;
    }
    @Override
    public boolean isViewFromObject(View view, Object object) {
      return view == ((ImageView) object);
    }
    @Override
    public Object instantiateItem(ViewGroup container, int position) {
      Context context = MainActivity.this;
      ImageView imageView = new ImageView(context);
      int padding = context.getResources().getDimensionPixelSize(
          R.dimen.padding_medium);
      imageView.setPadding(padding, padding, padding, padding);
      imageView.setScaleType(ImageView.ScaleType.CENTER_INSIDE);
      imageView.setImageResource(mImages[position]);
      ((ViewPager) container).addView(imageView, 0);
      return imageView;
    }
    @Override
    public void destroyItem(ViewGroup container, int position,Object object) {
      ((ViewPager) container).removeView((ImageView) object);
    }
  }
}

Create a sharing button and inside the listen for button click call the share intent

Intent sharingIntent = newIntent(android.content.Intent.ACTION_SEND);
 sharingIntent.setType("text/plain");
 String shareBody = "Insert the share content body";              sharingIntent.putExtra(android.content.Intent.EXTRA_SUBJECT,"Insert Subject Here");
 sharingIntent.putExtra(android.content.Intent.EXTRA_TEXT, shareBody);
 startActivity(Intent.createChooser(sharingIntent, "Share via"));

  < uses-permission android:name="android.permission.INTERNET"/>  

            gridView = (GridView) findViewById(R.id.gridView1);
            gridView.setAdapter(new ImageAdapter(this));
            gridView.setOnItemClickListener(new OnItemClickListener() 
                 {
      public void onItemClick(AdapterView parent,View v,int position,long id) 
                 {          
                 System.out.println("====>>"+position);
                 Intent i = new Intent(getApplicationContext(),GidImage.class);
                 // passing array index
                 i.putExtra("id", position);
                 startActivity(i);
                   }
            });

            Intent i = getIntent();
               // Selected image id
            int position = i.getExtras().getInt("id");
            ImageAdapter imageAdapter = new ImageAdapter(this);
            ImageView imageView =(ImageView)
                                        findViewById(R.id.full_image_view);    
                                                                               
            imageView.setImageResource(imageAdapter.mThumbIds[position]);

    public class ImageAdapter extends BaseAdapter {
    private Context context;
    public Integer[] mThumbIds = {
            R.drawable.card0, R.drawable.card1,
            R.drawable.card2, R.drawable.card3,
            R.drawable.card0, R.drawable.card1,
            R.drawable.card2, R.drawable.card3,
            R.drawable.card0, R.drawable.card1,
            R.drawable.card2, R.drawable.card3
         };
    public ImageAdapter(Context context) {
        this.context = context;
    }
     @Override
    public int getCount() {
        return mThumbIds.length;
    }

    @Override
    public Object getItem(int position) {
        return mThumbIds[position];
    }

    @Override
    public long getItemId(int position) {
        return 0;
    } 
   public View getView(int position, View convertView, ViewGroup parent) {
         ImageView imageView = new ImageView(context);
         imageView.setImageResource(mThumbIds[position]);
         imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
         imageView.setLayoutParams(new GridView.LayoutParams(130, 100));
         imageView.setPadding(8, 8, 8, 8);
         return imageView;
        }
}

copyarray = table.copy( randomArray)
        local function compare( a, b )
            return a < b
        end 
table.sort( copyarray, compare )

Call this function to generate a set of five random numbers (maxRandom)...

local function generaterandom()
    local maxRandom = 5
        for m = 1, randCount do
        randomArray[m]=-100
        end
        local i = 1
      while i
                local randNum = math.random (1, maxRandom) 
                local flagNew = false 
                    for j = 1 , randCount do 
                         if randomArray[j]==randNum then 
                            flagNew = true
                             break 
                         end 
                    end 
                        if flagNew==false then  
                            randomArray[i]=randNum
                             i=i+1
                       end
          end
        for k=1, randCount do
             print("Values---->".. randomArray[k])
        end
      end

On a button click we are creating the same class as a dialog so that the touch is not received

public class MainActivity extends Activity {
    Dialog overlayDialog;
    EditText edt;
    Button bt;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        edt=(EditText)findViewById(R.id.editText1);
        bt=(Button)findViewById(R.id.button1);
        bt.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View arg0) {
            // TODO Auto-generated method stub
          disableAnyInput(); 
            }
        });
      }
    public void disableAnyInput(){
        Toast.makeText(getApplicationContext(), "This will disable any input. Click the backbutton " 
                                                    +  "to enable any input.", Toast.LENGTH_LONG).show();
       overlayDialog = new Dialog(MainActivity.this,android.R.style.Theme_Panel);
       overlayDialog.setCancelable(true);
       overlayDialog.show();
        } }

< TextView
        android:id="@+id/MarqueeText"
        android:layout_width="wrap_content"
        android:marqueeRepeatLimit="marquee_forever"
        android:layout_height="wrap_content"
        android:ellipsize="marquee"
        android:focusable="true"
        android:focusableInTouchMode="true"
        android:freezesText="true"
        android:paddingLeft="15dip"
        android:paddingRight="15dip"
        android:scrollHorizontally="true"
        android:singleLine="true"
        android:layout_marginTop="300dp"
        android:text="This is a very long text which is not fitting in the screen so it needs to be marqueed." />

    Intent intent=new Intent(FirstClass.this, SecondClass.class);
    Bundle bundle=new Bundle();
    bundle.putInt("image",R.drawable.ic_launcher);
    intent.putExtras(bundle);
    startActivity(intent);

    Bundle bundle=this.getIntent().getExtras();
    int pic=bundle.getInt("image");
    v.setImageResource(pic);

    Drawable drawable=imgv.getDrawable();
    Bitmap bitmap= ((BitmapDrawable)drawable).getBitmap();
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    bitmap.compress(Bitmap.CompressFormat.PNG, 100, baos);
    byte[] b = baos.toByteArray();
    Intent intent=new Intent(Passimage.this,myclass.class);
    intent.putExtra("picture", b);
    startActivity(intent);

   Bundle extras = getIntent().getExtras();
   byte[] b = extras.getByteArray("picture");
   Bitmap bmp = BitmapFactory.decodeByteArray(b, 0, b.length);
   ImageView image = (ImageView) findViewById(R.id.imageView1);
   image.setImageBitmap(bmp); 

< ?xml version="1.0" encoding="utf-8"?> 
< LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    > 
< GridView
    android:id="@+id/gridView1"
    android:numColumns="auto_fit"
    android:gravity="center"
    android:columnWidth="50dp"
    android:stretchMode="columnWidth"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" > 

< /GridView> 
< /LinearLayout> 

< ?xml version="1.0" encoding="utf-8"?> 
< LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:padding="5dp" > 
 
    < ImageView
        android:id="@+id/grid_item_image"
        android:layout_width="50px"
        android:layout_height="50px"
        android:layout_marginRight="10px"
        android:src="@drawable/ic_launcher"> 
    < /ImageView> 
 
    < TextView
        android:id="@+id/grid_item_label"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@+id/label"
        android:layout_marginTop="5dp"
         android:textColor="#FFFFFF"
        android:textSize="16dp" > 
    < /TextView> 
< /LinearLayout> 

public class SendCard extends Activity {
    GridView gridView; 
    static final String[] Card = new String[] { "Card1","Card2","Card3", "Card4" };
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        setContentView(R.layout.send_card);
       
         gridView = (GridView) findViewById(R.id.gridView1);
         gridView.setAdapter(new ImageAdapter(this, Card));
         gridView.setOnItemClickListener(new OnItemClickListener() {
         public void onItemClick(AdapterView parent, View v,int position, long id) {
                   
             Toast.makeText(getApplicationContext(),((TextView)v.findViewById(R.id.grid_item_label))
                       .getText(), Toast.LENGTH_SHORT).show();
                }
            });

      }}

public class ImageAdapter extends BaseAdapter {
    private Context context;
    private final String[] mobileValues;
    public ImageAdapter(Context context, String[] mobileValues) {
        this.context = context;
        this.mobileValues = mobileValues;
    }
    public View getView(int position, View convertView, ViewGroup parent) {
        LayoutInflater inflater = (LayoutInflater) context
            .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
           View gridView;
        if (convertView == null) {
            gridView = new View(context);
            gridView = inflater.inflate(R.layout.cus_gridview, null);
            TextView textView = (TextView)gridView.findViewById(R.id.grid_item_label);
            textView.setText(mobileValues[position]);
            ImageView imageView = (ImageView)

            gridView.findViewById(R.id.grid_item_image);
           String mobile = mobileValues[position];
            if (mobile.equals("Card1")) {
                imageView.setImageResource(R.drawable.icon);
            } else if (mobile.equals("Card2")) {
                imageView.setImageResource(R.drawable.icon);
            } else if (mobile.equals("Card3")) {
                imageView.setImageResource(R.drawable.icon);
            } else {
                imageView.setImageResource(R.drawable.icon);
            }
        } else {
            gridView = (View) convertView;
        }

        return gridView;
    }
    public int getCount() {
        return mobileValues.length;
    }

    public Object getItem(int position) {
        return null;
    }

    public long getItemId(int position) {
        return 0;
    }}