java find duplicate element in list
public static Set<String> findDuplicates(List<String> listContainingDuplicates) {
final Set<String> setToReturn = new HashSet<String>();
final Set<String> set1 = new HashSet<String>();
for (String yourInt : listContainingDuplicates) {
if (!set1.add(yourInt)) {
setToReturn.add(yourInt);
}
}
return setToReturn;
}Java find duplicate items
System.out.print("Duplicate Characters in above string are: ");
for (int i = 0; i < str.length(); i++) {
for (int j = i + 1; j < str.length(); j++) {
if (carray[i] == carray[j]) {
System.out.print(carray[j] + " ");
break;
}
}
}Copyright © 2021 Codeinu
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