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package com.technologyconversations.java8exercises.streams;

import java.util.ArrayList;
import java.util.List;

import static java.util.stream.Collectors.toList;

public class FlatCollection {

    public static List<String> transform7(List<List<String>> collection) {

vfarcic

package com.technologyconversations.java8exercises.streams;

import org.junit.Test;

import java.util.List;

import static com.technologyconversations.java8exercises.streams.OldestPerson.*;
import static java.util.Arrays.asList;
import static org.assertj.core.api.Assertions.assertThat;

vfarcic

package com.technologyconversations.java8exercises.streams;

import java.util.Comparator;
import java.util.List;

public class OldestPerson {

    public static Person getOldestPerson7(List<Person> people) {
        Person oldestPerson = new Person("", 0);
        for (Person person : people) {

vfarcic

package com.technologyconversations.java8exercises.streams;

import org.junit.Test;

import java.util.List;

import static com.technologyconversations.java8exercises.streams.Sum.*;
import static java.util.Arrays.asList;
import static org.assertj.core.api.Assertions.assertThat;

vfarcic

package com.technologyconversations.java8exercises.streams;

import java.util.List;

public class Sum {

    public static int calculate7(List<Integer> numbers) {
        int total = 0;
        for (int number : numbers) {
            total += number;

vfarcic

package com.technologyconversations.java8exercises.streams;

import org.junit.Test;

import java.util.List;

import static com.technologyconversations.java8exercises.streams.Kids.*;
import static java.util.Arrays.asList;
import static org.assertj.core.api.Assertions.assertThat;

vfarcic

package com.technologyconversations.java8exercises.streams;

import java.util.*;

import static java.util.stream.Collectors.toSet;

public class Kids {

    public static Set<String> getKidNames7(List<Person> people) {
        Set<String> kids = new HashSet<>();

vfarcic

package com.technologyconversations.java8exercises.streams;

import org.junit.Test;

import java.util.List;

import static com.technologyconversations.java8exercises.streams.PeopleStats.*;
import static java.util.Arrays.asList;
import static org.assertj.core.api.Assertions.assertThat;

vfarcic

package com.technologyconversations.java8exercises.streams;

import java.util.IntSummaryStatistics;
import java.util.List;

public class PeopleStats {

    public static Stats getStats7(List<Person> people) {
        long sum = 0;
        int min = people.get(0).getAge();

vfarcic

package com.technologyconversations.java8exercises.streams;

import org.junit.Test;

import java.util.List;
import java.util.Map;

import static com.technologyconversations.java8exercises.streams.Partitioning.*;
import static java.util.Arrays.asList;
import static org.assertj.core.api.Assertions.assertThat;