java.util.stream.IntStream in Java 8, deals with primitive ints. It helps to solve the old problems like finding maximum value in array, finding minimum value in array, sum of all elements in array, and average of all values in array in a new way. IntStream min() returns an OptionalInt describing the minimum element of this stream, or an empty optional if this stream is empty.
Syntax :
OptionalInt() min() Where, OptionalInt is a container object which may or may not contain a int value.
Below given are some examples to understand the function in a better way.
Example 1 :
// Java code for IntStream min()import java.util.*;import java.util.stream.IntStream; class GFG { // Driver code public static void main(String[] args) { // creating a stream IntStream stream = IntStream.of(-9, -18, 54, 8, 7, 14, 3); // OptionalInt is a container object // which may or may not contain a // int value. OptionalInt obj = stream.min(); // If a value is present, isPresent() will // return true and getAsInt() will // return the value if (obj.isPresent()) { System.out.println(obj.getAsInt()); } else { System.out.println("-1"); } }} |
Output :
-18
Example 2 :
// Java code for IntStream min()// to get the minimum value in range// excluding the last elementimport java.util.*;import java.util.stream.IntStream; class GFG { // Driver code public static void main(String[] args) { // To find minimum in given range IntStream stream = IntStream.range(50, 75); // storing the minimum value in variable // if it is present, else show -1. int minimum = stream.min().orElse(-1); // displaying the minimum value System.out.println(minimum); }} |
Output :
50
Example 3 :
// Java code for IntStream min()// to get the minimum value in range// excluding the last elementimport java.util.*;import java.util.stream.IntStream; class GFG { // Driver code public static void main(String[] args) { // To find minimum in given range IntStream stream = IntStream.range(50, 50); // storing the minimum value in variable // if it is present, else show -1. int minimum = stream.min().orElse(-1); // displaying the minimum value System.out.println(minimum); }} |
Output :
-1
