Call Other application Activity inside Your Application via Intent in Android

public void onClick(View v) {
// TODO Auto-generated method stub
Intent i = new Intent();
i.setClassName("PackageNameOfOtherApp", "ClassNameWithPackageOfOtherApp");  

Bundle b = new Bundle();

b.putString("name", "umer");
b.putString("num", "1234");

i.putExtras(b);

startActivity(i);

}
});  
       

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             </activity>
         
              <activity android:name="ClassNameWithPackageOfOtherApp" >
     </activity>