1    package arraylistplay;
2    
3    import java.util.ArrayList;
4    import java.util.List;
5    
6    
7    public class ArrayListProcessing {
8            public static void main(String[] args) {
9                List<String> names = new ArrayList<>();
10               // Part A
11               names.add("Holiday, Billie");
12               names.add("Claudel, Camille");
13               names.add("Picaso, Pablo");
14               names.add("Gallen-Kallela, Akseli");
15               names.add("Zotto, Osvaldo");
16               names.add("Ross, Bob");
17               names.add("Rogan, Joe");
18               // Part B
19   
20               List<String> firstNamesList = firstNames(names);
21               List<String> lastNamesList = lastNames(names);
22               System.out.print("First names: ");
23               for (String firstName : firstNamesList){
24                   System.out.print(firstName + " ");
25               }
26               System.out.println();
27               // Part C
28               String firstNames = String.join(", ", firstNamesList);
29               System.out.println("First names: " + firstNames);
30               // Part D
31               String lastNames = String.join(", ", lastNamesList);
32               System.out.println("Last names: " + lastNames);
33               // Part E
34               List<String> upperCaseFirstNameList = upperCaseNames(firstNames(names));
35               String upperCaseFirstNames = String.join(", ", upperCaseFirstNameList);
36   
37               System.out.println("Uppercase first names: " + upperCaseFirstNames);
38               //Part F
39               List<String> hypenatedLastNameList = hyphenatedNames(lastNames(names));
40               String hypenatedLastNames = String.join(", ", hypenatedLastNameList);
41   
42               System.out.println("Hypenated last names: " + hypenatedLastNames);
43               // Part G
44               int totalLength = totalNameLength(names);
45   
46               System.out.println("Total Length: " + totalLength);
47               // Part H
48               int firstNameLength = totalNameLength(firstNames(names));
49   
50               System.out.println("First Name Lengths: " + firstNameLength);
51               // Part I
52               int ProductofFirstNames = productNameLength(firstNames(names));
53   
54               System.out.println("Product of First Name Lengths: " + ProductofFirstNames);
55   
56   
57   
58           }
59   
60                   // Part B
61   
62                   private static String firstName (String directoryStyleName) {
63                       int directoryStyleNameComma = directoryStyleName.indexOf(",");
64                       int directorylength = directoryStyleName.length();
65                       directoryStyleName = directoryStyleName.substring(directoryStyleNameComma + 1, directorylength);
66                       return directoryStyleName;
67                   }
68                   private static String lastName (String directoryStyleName2){
69                       int directoryStyleNameComma = directoryStyleName2.indexOf(",");
70                       directoryStyleName2 = directoryStyleName2.substring(0, directoryStyleNameComma);
71                       return (directoryStyleName2);
72                    }
73   
74                   private static List<String> firstNames(List<String> names){
75                       List<String> firsts = new ArrayList<>();
76                       for (String name : names) {
77                           firsts.add(firstName(name));
78                       }
79                       return firsts;
80                   }
81                   private static List<String> lastNames(List<String> names){
82                       List<String> lasts = new ArrayList<>();
83                       for (String name : names) {
84                           lasts.add(lastName(name));
85                       }
86                       return lasts;
87                   }
88                   private static List<String> upperCaseNames(List<String> names) {
89                       List<String> uppercases = new ArrayList<>();
90                       for (String name : names) {
91                           uppercases.add(name.toUpperCase());
92                       }
93                       return uppercases;
94                   }
95                   public static List<String> hyphenatedNames(List<String> names) {
96                       List<String> hyphenateds = new ArrayList<>();
97                       for (String name : names) {
98                           if (name.contains("-")) {
99                               hyphenateds.add(name);
100                          }
101                      }
102                      return hyphenateds;
103                  }
104                  public static int totalNameLength(List<String> names){
105                      int totalLength = 0;
106                      for (String name : names){
107                          totalLength = totalLength + name.length();
108                      }
109                      return totalLength;
110                  }
111                  public static int productNameLength(List<String> names){
112                      int ProductLength = 1;
113                      for (String name : names){
114                          ProductLength = ProductLength * name.length();
115  
116                      }
117                      return ProductLength;
118                  }
119  }
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