In this tutorial, we will see “How to find the second largest number in an array using Java 8?”
find second largest number in an array using java 8 stream
Java 8 – How to find the Second Largest Number in an Array? – Simplest Examples Share on X
Java 8 1st method:
/**
* Using Skip method of Java 8 Stream, Find the second largest number in an array
* @author Deepak Verma
*
*/
import java.util.Arrays;
import java.util.stream.IntStream;
public class Find_Second_Largest_Number_In_Array_Java8Stream_Example1 {
public static void main(String args[]) {
int[] numbers = {3,15,29,18,73,64};
// Get a stream of the numbers
IntStream stream = Arrays.stream(numbers);
int secondLargest = stream.sorted()
.skip(numbers.length - 2)
.findFirst()
.getAsInt();
System.out.println("Second Largest Number in the Array is: "+secondLargest);
}
}
Output:
Second Largest Number in the Array is: 64
check if text or string present in a file using java 8
In above example, It first sorts the array, then skips the last element (the largest one) using skip(arr.length - 2), and finally finds the first element in the remaining stream, which is the second largest number.
Java 8 2nd method:
/**
* Using Skip and Limit method of Java 8 Stream, Find the second largest number in an array
* @author Deepak Verma
*
*/
import java.util.Arrays;
import java.util.Comparator;
import java.util.List;
public class Find_Second_Largest_Number_In_Array_Java8Stream_Example2 {
public static void main(String args[]) {
List<Integer> numbers = Arrays.asList(12, 18, 15, 8, 31);
int secondLargest = numbers.stream()
.sorted(Comparator.reverseOrder())
.limit(2)
.skip(1)
.findFirst()
.get();
System.out.println("Second Largest Number in the Array is: "+secondLargest);
}
}
Output:
Second Largest Number in the Array is: 18
find second largest number in an array using java 8 stream
In above example, It first sorts the array in descending order, then limits the stream to the first 2 elements using limit(2), then skip the first element using skip(1), and finally finds the first element in the remaining stream, which is the second largest number.
skip method java 8 stream
Java 8 – How to find the Second Largest Number in an Array? – Simplest Examples Share on X
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