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Java Array Exercises: Find the maximum and minimum value of an array

Java Array: Exercise-10 with Solution

Write a Java program to find the maximum and minimum value of an array.

Pictorial Presentation:

Java Array Exercises: Find the maximum and minimum value of an array

Sample Solution:

Java Code:

import java.util.Arrays; 
public class Exercise10 {
 
  static int max;
  static int min;

    public static void max_min(int my_array[]) {
        max = my_array[0];
        min = my_array[0];
        int len = my_array.length;
        for (int i = 1; i < len - 1; i = i + 2) {
            if (i + 1 > len) {
                if (my_array[i] > max) max = my_array[i];
                if (my_array[i] < min) min = my_array[i];
            }
            if (my_array[i] > my_array[i + 1]) {
                if (my_array[i] > max) max = my_array[i];
                if (my_array[i + 1] < min) min = my_array[i + 1];
            }
            if (my_array[i] < my_array[i + 1]) {
                if (my_array[i] < min) min = my_array[i];
                if (my_array[i + 1] > max) max = my_array[i + 1];
            }
        }
    }

    public static void main(String[] args) {
           int[] my_array = {25, 14, 56, 15, 36, 56, 77, 18, 29, 49};
        max_min(my_array);
        System.out.println(" Original Array: "+Arrays.toString(my_array));
        System.out.println(" Maximum value for the above array = " + max);
        System.out.println(" Minimum value for the above array = " + min);
    }
}

Sample Output:

Original Array: [25, 14, 56, 15, 36, 56, 77, 18, 29, 49]                                                     
 Maximum value for the above array = 77                                                                       
 Minimum value for the above array = 14 

Flowchart:

Flowchart: Java exercises: Find the maximum and minimum value of an array

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Java Code Editor:

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Java: Tips of the Day

Different between parseInt() and valueOf() in java?

Well, the API for Integer.valueOf(String) does indeed say that the String is interpreted exactly as if it were given to Integer.parseInt(String). However, valueOf(String) returns a new Integer() object whereas parseInt(String) returns a primitive int.

If you want to enjoy the potential caching benefits of Integer.valueOf(int), you could also use this eyesore:

Integer k = Integer.valueOf(Integer.parseInt("123"))

Now, if what you want is the object and not the primitive, then using valueOf(String) may be more attractive than making a new object out of parseInt(String) because the former is consistently present across Integer, Long, Double, etc.

Ref: https://bit.ly/3vRuIPY