ACTION BAR INTENTS ACTIVITY

Simple steps to put intents in action bar menu.
Step 1:
Create multiple activities.

Step 2:

Set every activity with something to understand when activity is changed.

eg.

Step 3 :

Get this code below and put it into add source directly block  :

}

@Override

public boolean onCreateOptionsMenu(Menu menu){

menu.add("First Activity").setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER);

menu.add("Second Activity").setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER);

menu.add("Third Activity").setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER);

return true;

}

@Override 

public boolean onOptionsItemSelected(final MenuItem item) {

switch (item.getTitle().toString())

 {

case "First Activity":

Intent a = new Intent (MainActivity.this,MainActivity.class);

startActivity (a);

return true;

case "Second Activity":

Intent b = new Intent (MainActivity.this,SecondActivity.class);

startActivity (b);

return true;

case "Third Activity":

Intent c = new Intent (MainActivity.this,ThirdActivity.class);

startActivity (c);

return true;

default:

return super.onOptionsItemSelected(item);

}

Step 4 :

Set activity's name that you put your code in all as shown below.

Step 5:

Set menu add name of your choice and case :

NB: menu add name and case name must be equal.

Final step :

Set your case activities name.

NB: 

You must add code to every activity and set activity name in intents code and intents must have different name like (a), (b) etc.. As shown in the screen shot.