Java and Android

Questions 1. Each element of the A array is a string and has n elements. All words are fixed length and each word is given in k. Objective: To search for similarity among the elements of this series. There are two ways to create similarity groups. The first is to create groups that are 100% similar, and the second is to create groups according to the rate given. Example 100% similarity groups for aaa, aaa, aab, aab, aab, def, gaf, gaf, xcv, xcv elements Group 1 aaa 2 Group 2 aab 3 Group 3 def 1 Group 4 gaf 2 Group 5 xcv 2 occurs in the form. Write the algorithm that creates 100% similarity groups in java? 2. m and k are positive integers (m mod k). Write a recursive algorithm in java that performs the mod operation and finds the result without using the division operation in arithmetic? 3. K is a positive integer as and p numbers are prime numbers. Some positive integers are the strength of one prime number. For example 81 = 34 and 256 = 28. In case the number K is the strength of one prime number, write the algorithm that finds the logarithm of the number K according to this prime number in java? (ASAL (q) algorithm is an algorithm that returns 1 if q is prime, or 0 if not, it is forbidden to use the log command). 4. What is Android SDK, Emulator? 5. Write a simple hello world app on Android step by step? 6. How many Android layers are there? Please explain. 7. Please explain what you can use by writing components such as Button, EditText, ImageView, ToogleButton, CheckBox, Switch, RadioButton,… that you can use on Android? (Preferably: AlertDialog, WebView, Android ProgressDialog and Progressbar, Toast Message, Datepicker, Timepicker can write about them.)