Answers for "how to check if there are duplicate values in an array java"

find repeated elements in array java

for (String name : names) {
     if (set.add(name) == false) {
        // your duplicate element
     }
}

find repeated elements in array java

for (String name : names) {
     if (set.add(name) == false) {
        // your duplicate element
     }
}