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105
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1 package alice.jungle.log.example;
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54
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2
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3 import java.util.Iterator;
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4
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5 import fj.P2;
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6 import fj.data.List;
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7
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56
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8 public class ListTest {
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54
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9
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10 public static void main(String[] args) {
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11 List<Integer> list = List.nil();
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12 list = list.cons(2);
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56
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13 list = list.cons(3);
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14 list = list.cons(5);
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15 list = list.snoc(1);
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54
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16 System.out.println("list :"+list);
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56
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17 System.out.println("list.reverse() :"+list.reverse());
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18 System.out.println("list.index(0) :"+list.index(0));
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19 System.out.println("list.head() :"+ list.head());
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20 System.out.println("list.tail() :"+list.tail());
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21 System.out.println("list.splitAt(2)");
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22 P2<List<Integer>, List<Integer>> p2 = list.splitAt(2);
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23 List<Integer> list1 = p2._1();
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24 List<Integer> list2 = p2._2();
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25 System.out.println(list1);
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26 System.out.println(list2);
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27
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56
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28 final int INSERT_NUM = 4;
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54
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29 list = insertInteger(list, INSERT_NUM);
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30 System.out.println("newList :"+ list);
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56
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31
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32
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33
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54
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34 }
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35
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36 public static List<Integer> insertInteger(List<Integer> list, final int insertNum) {
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37 int count = 0;
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38 for(Iterator<Integer> iter = list.iterator(); iter.hasNext();){
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39 int num = iter.next();
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40 if(insertNum > num ) {
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41 break;
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42 }
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43 count++;
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44 }
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45 P2<List<Integer>, List<Integer>> p2 = list.splitAt(count);
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46 List<Integer> newList = List.nil();
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47 newList = p2._2().cons(insertNum);
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48 newList = p2._1().append(newList);
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49 return newList;
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50 }
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51
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52
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53 }
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