find max of array in java code example

Example 1: max in array java

// Initializing array of integers 
        Integer[] num = { 2, 4, 7, 5, 9 }; 
// using Collections.min() to find minimum element 
        // using only 1 line. 
        int min = Collections.min(Arrays.asList(num)); 
  
        // using Collections.max() to find maximum element 
        // using only 1 line. 
        int max = Collections.max(Arrays.asList(num));

Example 2: find min in array java

private static int findMin(int[] array) {
		int min = array[0];
		for(int i=1;i<array.length;i++) {
			if(min > array[i]) {
				min = array[i];
			}
		}
		return min;
	}

Example 3: java max array

public static String max(String[] arr) {
  String result = arr[0];
  for (int i = 1; i < arr.length; ++i) {
    if (result.compareTo(arr[i]) < 0) result = arr[i];
  }
  return result;
}

Example 4: java max array

public static double max(double[] arr) {
  double result = arr[0];
  for (int i = 1; i < arr.length; ++i) {
    if (result < arr[i]) result = arr[i];
  }
  return result;
}

Example 5: how to get the max value of an array java

import java.util.Random;

public class Main {

public static void main(String[] args) {
   int a[] = new int [100];
   Random rnd = new Random ();

    for (int i = 0; i< a.length; i++) {
        a[i] = rnd.nextInt(99-0)+0;
        System.out.println(a[i]);
    }

    int max = 0;          

    for (int i = 0; i < a.length; i++) {
        a[i] = max;


        for (int j = i+1; j<a.length; j++) {
            if (a[j] > max) {
               max = a[j];
            }

        }
    }

    System.out.println("Max element: " + max);
}
}