Created
February 27, 2017 19:13
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Java Procedure to Read a list of stringLists to identify recurrences of the string in other lists.
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import java.util.ArrayList; | |
import java.util.Arrays; | |
import java.util.Map; | |
import java.util.HashMap; | |
public class Arrayception { | |
public static void main(String[] args) { | |
ArrayList<String> docs1 = new ArrayList(); | |
ArrayList<String> docs2 = new ArrayList(); | |
ArrayList<String> docs3 = new ArrayList(); | |
ArrayList<ArrayList> master = new ArrayList<ArrayList>(); | |
Map<String,ArrayList> sad = new HashMap<>(); | |
//Hardcoded ArrayList Initialization | |
docs1.add("d1"); | |
docs1.add("d2"); | |
docs1.add("d3"); | |
docs1.add("d4"); | |
docs2.add("d1"); | |
docs2.add("d5"); | |
docs2.add("d6"); | |
docs2.add("d7"); | |
docs2.add("d8"); | |
docs3.add("d1"); | |
docs3.add("d2"); | |
docs3.add("d10"); | |
docs3.add("d11"); | |
//Combine string lists to an arrayList. | |
master.add(docs1); | |
master.add(docs2); | |
master.add(docs3); | |
int arrayListIndex = 1; | |
for(ArrayList<String> child:master) { | |
for(String value: child) { | |
ArrayList<Integer> lists = sad.containsKey(value)?sad.get(value):new ArrayList<>(); | |
lists.add(arrayListIndex); | |
sad.put(value,lists); | |
} | |
arrayListIndex += 1 ; | |
} | |
for(Map.Entry<String,ArrayList> entry : sad.entrySet()) { | |
System.out.println(entry.getKey()+":"+Arrays.toString(entry.getValue().toArray())); | |
} | |
} | |
} | |
// Output | |
// d4:[1] | |
// d5:[2] | |
// d6:[2] | |
// d10:[3] | |
// d7:[2] | |
// d8:[2] | |
// d11:[3] | |
// d1:[1, 2, 3] | |
// d2:[1, 3] | |
// d3:[1] |
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