package com.example.android.myapplication;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;

import java.util.ArrayList;

public class MainActivity extends AppCompatActivity {

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

        ArrayList<Student> students = new ArrayList<>();
        students.add(new Student("John", 20));
        students.add(new Student("Jim", 15));
        students.add(new Student("Ann", 18));
        students.add(new Student("John", 14));

        ArrayList<Student> studentsSumTotal =  new ArrayList<>();

        String prevStudentName = students.get(0).name;
        int prevStudentScore = students.get(0).score;

        for (int i = 1; i < students.size(); i++) {

            String currentName = students.get(i).name;
            int currentScore = students.get(i).score;

            if (currentName == prevStudentName) {
                int totalScore = currentScore + prevStudentScore;
                studentsSumTotal.add(new Student(currentName, totalScore));
            } else {
                studentsSumTotal.add(new Student(currentName, currentScore));
            }
        }


        Log.v("=================== Msg", "Sum of Score ===================");
        // Display Sum of Score for each student
        for (int i = 0; i < studentsSumTotal.size(); i++) {
            Log.v(studentsSumTotal.get(i).name, studentsSumTotal.get(i).score + "");
        }
        Log.v("=================== Msg", "Sum of Score ===================");
        Log.v("Size of studio", studentsSumTotal.size() + "");

    }
}