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Copy pathPick.java
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29 lines (25 loc) · 802 Bytes
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package basic;
import java.util.Collection;
/**
* Created by sunbo_000 on 7/17/2016.
*/
public class Pick {
public Integer getSecondLargestInteger(Collection<Integer> integers) {
if (integers == null || integers.size() < 2) return null;
Integer secondLargest = Integer.MIN_VALUE;
Integer largest = Integer.MIN_VALUE;
for (Integer ele : integers) {
if (ele > largest) {
if(largest > secondLargest) secondLargest = largest;
largest = ele;
continue;
}
if (ele.equals(largest)) {
secondLargest = ele;
continue;
}
if (ele < largest && ele > secondLargest) secondLargest = ele;
}
return secondLargest;
}
}