Java Program: Find Maximum and Minimum Values in a List of Integers using Streams

Last update on April 28 2025 07:53:55 (UTC/GMT +8 hours)

Write a Java program to find the maximum and minimum values in a list of integers using streams.

Sample Solution:

Java Code:

import java.util.Arrays;
import java.util.List;

public class Main {
  public static void main(String[] args) {
    List < Integer > nums = Arrays.asList(1, 17, 54, 14, 14, 33, 45, -11);
    System.out.println("Original list of numbers: " + nums);
    // Find the maximum value
    Integer max_val = nums.stream()
      .max(Integer::compare)
      .orElse(null);

    // Find the minimum value
    Integer min_val = nums.stream()
      .min(Integer::compare)
      .orElse(null);

    System.out.println("\nMaximum value of the said list: " + max_val);
    System.out.println("\nMinimum value of the said list: " + min_val);
  }
}

Sample Output:

Original list of numbers: [1, 17, 54, 14, 14, 33, 45, -11]

Maximum value of the said list: 54

Minimum value of the said list: -11

Explanation:

In the above exercise,

We create a list of integers (nums) and use streams to find the maximum value using the max() method and the minimum value using the min() method. The orElse method handles the case when the list is empty. Finally, we print the maximum and minimum values.

Flowchart:

For more Practice: Solve these Related Problems:

• Write a Java program to find the maximum and minimum values in a list of integers using streams, then compute their average.
• Write a Java program to extract the maximum and minimum values from a list using streams and return them as a custom pair.
• Write a Java program to find the maximum even number and the minimum odd number in a list using streams.
• Write a Java program to compute the range (difference between maximum and minimum) of a list of integers using streams.

Java Code Editor:

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