Java Program to find Largest Number in an Array

by Online Tutorials Library July 22, 2022

Java Program to find Largest Number in an Array

We can find the largest number in an array in java by sorting the array and returning the largest number. Let’s see the full example to find the largest number in java array.

 public class LargestInArrayExample{ public static int getLargest(int[] a, int total){ int temp; for (int i = 0; i < total; i++)          {             for (int j = i + 1; j < total; j++)              {                 if (a[i] > a[j])                  {                     temp = a[i];                     a[i] = a[j];                     a[j] = temp;                 }             }         }        return a[total-1]; } public static void main(String args[]){ int a[]={1,2,5,6,3,2}; int b[]={44,66,99,77,33,22,55}; System.out.println(“Largest: “+getLargest(a,6)); System.out.println(“Largest: “+getLargest(b,7)); }} 

Test it Now

Output:

Largest: 6 Largest: 99

Find Largest Number in Array using Arrays

Let's see another example to get largest element in java array using Arrays.

 import java.util.Arrays; public class LargestInArrayExample1{ public static int getLargest(int[] a, int total){ Arrays.sort(a); return a[total-1]; } public static void main(String args[]){ int a[]={1,2,5,6,3,2}; int b[]={44,66,99,77,33,22,55}; System.out.println("Largest: "+getLargest(a,6)); System.out.println("Largest: "+getLargest(b,7)); }} 

Test it Now

Output:

Largest: 6 Largest: 99

Find Largest Number in Array using Collections

Let's see another example to get largest number in java array using collections.

 import java.util.*; public class LargestInArrayExample2{ public static int getLargest(Integer[] a, int total){ List list=Arrays.asList(a); Collections.sort(list); int element=list.get(total-1); return element; } public static void main(String args[]){ Integer a[]={1,2,5,6,3,2}; Integer b[]={44,66,99,77,33,22,55}; System.out.println("Largest: "+getLargest(a,6)); System.out.println("Largest: "+getLargest(b,7)); }} 

Test it Now

Output:

Largest: 6 Largest: 99

Next TopicJava Programs

Java Program to find Largest Number in an Array

Java Program to find Largest Number in an Array

Find Largest Number in Array using Arrays

Find Largest Number in Array using Collections

Java Math.negateExact() Method with Examples

Java Short floatValue() method with Examples

You may also like