Java Program To Find Duplicate Value In Array Of String

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import java.util.Set;
import java.util.HashSet;

public class JavaDuplicateValueInArrayOfString {

	public static void main(String args[]) {
		String[] stringVal = new String[] { "abc", "bcd", "abc", "dca" };

		System.out.println("Normal Method \n" + FindDupValue(stringVal));

		System.out.println("Using Builtin Class Set \n" + FindDupValueUsingSet(stringVal));

	}

	private static String FindDupValue(String[] sValueTemp) {
		for (int i = 0; i < sValueTemp.length; i++) {
			String sValueToCheck = sValueTemp[i];
			if (sValueToCheck == null || sValueToCheck.equals(""))
				continue;
			for (int j = 0; j < sValueTemp.length; j++) {
				if (i == j)
					continue;
				String sValueToCompare = sValueTemp[j];
				if (sValueToCheck.equals(sValueToCompare)) {
					return sValueToCompare;
				}
			}

		}
		return "";
	}

	private static String FindDupValueUsingSet(String[] sValueTemp) {
		Set sValueSet = new HashSet();
		for (String tempValueSet : sValueTemp) {
			if (sValueSet.contains(tempValueSet))
				return tempValueSet;
			else if (!tempValueSet.equals(""))
				sValueSet.add(tempValueSet);
		}
		return "";
	}
}
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