Java Program to Find Largest Array Number

Write a Java Program to Find the Largest Array Number with an example or program to print or return the largest element or item in a given array.

Java Program to Find Largest Array Number using for loop

In this example, we allow the user to enter the lrg_arr size and the items. Next, we assigned the lrg_arr first array item to the Largest variable. Then, we compare each item with this variable. If the Largest is less than any other lrg_arr item, we replaced the variable value with that lrg_arr item.

import java.util.Scanner;

public class Simple {
	private static Scanner sc;
	
	public static void main(String[] args) {
		int Size, i, Lar, Posi = 0;
		
		sc = new Scanner(System.in);		
		System.out.print("\nPlease Enter the LRG size : ");
		Size = sc.nextInt();
		
		int[] lrg_arr = new int[Size];
		
		System.out.format("\nEnter LRG %d elements  : ", Size);
		for(i = 0; i < Size; i++) {
			lrg_arr[i] = sc.nextInt();
		}
		Lar = lrg_arr[0];
		for(i = 1; i < Size; i++) {
			if(Lar < lrg_arr[i]) {
				Lar = lrg_arr[i];
				Posi = i;
			}
		}
		System.out.format("\nLargest element in LRG Array = %d", Lar);
		System.out.format("\nIndex position of the Largest element = %d", Posi);
	}
}

Java Program to Find the Largest Array Number using functions

In this programming example, we created a separate function to return the largest item in the given array. Please refer to the C Program to get the highest Number article to understand the For loop program iteration.

import java.util.Scanner;

public class LarElemUsingMethods {
	private static Scanner sc;
	static int Size, i, Lst, Position = 0;	
	public static void main(String[] args) {
		int[] lrg_arr = new int[10];
		
		sc = new Scanner(System.in);		
		System.out.print("\nPlease Enter the LRG size :  ");
		Size = sc.nextInt();
		
		System.out.format("\nEnter LRG %d elements : ", Size);
		for(i = 0; i < Size; i++) {
			lrg_arr[i] = sc.nextInt();
		}
		Lst = LstElent(lrg_arr);
		System.out.format("\nLargest element in LRG = %d", Lst);
	}
	public static int LstElent(int[] lrg_arr ) {
		Lst = lrg_arr[0];
		for(i = 1; i < Size; i++) {
			if(Lst < lrg_arr[i]) {
				Lst = lrg_arr[i];
				Position = i;
			}
		}
		return Lst; 
	}
}

Please Enter the LRG size :  7

Enter LRG 7 elements : 10 19 67 44 89 77 11

Largest element in LRG = 89