java - Copying parallel arrays to new parallel arrays without duplicates -

i writing method takes 2 parallel arrays , int size variable keep track of indexing. example

string[] names = new string[100]; //partially filled array int[] scores = new int[names.length]; //scores each plater int entry = 0;  names[size] = "bob"; scores[size] = 20; size++; 

the above code indicates on first entry in "list" tis of bob has score of 20.

i writing method takes names array, scores array, , size variable. must copy information of arrays passed on new arrays duplicate entries 1 entry , sum aligned.

so example if there original list

name: bob, score: 20 name: paul, score: 30 name: bob, score: 10 //size - 3 

so new parallel arrays must

name: bob, score: 30 name: paul, score 30 //size - 2 

i have created method, , add sum of names, stuck on process of removing duplicates.

public static void totaldurations(string[] oldnames, int[] oldscores, int oldsize) {      string[] newnames = new string[100];     int[] newscores = new int[newnames.length];     int newsize = 0;      int matchpos;     int addduration = 0;      string tempstring = null;      (int = 0; < oldsize; i++) {          //the find method returns index of string if found else returns -1         matchpos = find(oldnames, oldsize, 0, oldnames[i]);          while (matchpos >= 0) {              addduration += oldscores[matchpos];              // find next match, starting after last 1             matchpos = find(oldnames, oldsize, matchpos + 1, oldnames[i]);          }            newnames[newsize] = oldnames[i];         newscores[newsize] = addduration;         addduration = 0;         newsize++;      }      //print list     (int = 0; < newsize; i++) {         system.out.println("name: " + newnames[i] + ",  score: " + newscores[i] );     }  } 

if pass entries

"bob", 10 "bob", 10 "paul", 20 "paul", 20 "bob", 10 

my output

name: bob, score: 30 name: bob, score: 30 name: paul, score: 40 name: paul, score: 40 name: bob, score: 30 

so my main question. algorithm can use copy name , total score onto new arrays only once. while keeping in mind due duplicated new size of list smaller old 1 always.

thank in advance.

i want achieve arrays , conditional loops.

create map using name key , score value. if find name exists, retrieve value, add current score retrieved score, , update putting new score map.

after you've completed on initial name[] , score[] arrays, iterate on map's entryset , add each name , score respective new array[]s.

(by way, has nothing parallel processing or multi-threading.)