Help with java. Method provided creates a List of all duplicate intergers found on a non-sort List. Write a new method that creates a list of all duplicate intergers found on a List.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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Help with java. Method provided creates a List of all duplicate intergers found on a non-sort List. Write a new method that creates a list of all duplicate intergers found on a List.

 

public static List<Integer> findDuplicatesBad(List<Integer> numbers)
{
List<Integer> duplicateList = new ArrayList<Integer>();
for(int i=0; i<numbers.size(); i++) {
int numberEvaluating = numbers.get(i);
boolean duplicateFound = false;
for(int j=i+1; j<numbers.size() && !duplicateFound; j++) {
int numberChecking = numbers.get(j);
if(numberEvaluating==numberChecking && !duplicateList.contai
ns(numberEvaluating)) {
duplicateFound = true;
for(int k=j; k<numbers.size(); k++) {
if(numberChecking==Integer.value0f(numbers.get(k)))
{
duplicatelist.add(numberChecking);
}
}
}
}
return duplicateList;
}
Transcribed Image Text:public static List<Integer> findDuplicatesBad(List<Integer> numbers) { List<Integer> duplicateList = new ArrayList<Integer>(); for(int i=0; i<numbers.size(); i++) { int numberEvaluating = numbers.get(i); boolean duplicateFound = false; for(int j=i+1; j<numbers.size() && !duplicateFound; j++) { int numberChecking = numbers.get(j); if(numberEvaluating==numberChecking && !duplicateList.contai ns(numberEvaluating)) { duplicateFound = true; for(int k=j; k<numbers.size(); k++) { if(numberChecking==Integer.value0f(numbers.get(k))) { duplicatelist.add(numberChecking); } } } } return duplicateList; }
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