What is an Array?

Array is a collection of similar type of elements that have contiguous memory location.

Java array is an object that contains elements of similar data type. It is a data structure where we store similar elements. We can store only fixed set of elements in a java array.

Array in java is index based, first element of the array is stored at 0 index. 

Advantage of Java Array

Code Optimization: It makes the code optimized, we can retrieve or sort the data easily.

• Random access: We can get any data located at any index position.

Disadvantage of Java Array

Size Limit: We can store only fixed size of elements in the array. It doesn't grow its size at runtime. To solve this problem, collection framework is used in java.

Thus we have the following program to accomplish our task:

package largestsmallest;
import java.io.*;
public class LargestSmallest {
    public static void main(String[] args)throws IOException {
        BufferedReader br= new BufferedReader(new InputStreamReader(System.in));         int num[]=new int[10];
        int lindex=0,sindex=0;
        for(int i=0;i<10;i++)
        {
            System.out.println("enter a number");
            num[i]=Integer.parseInt(br.readLine()); 
        }
        int smallest = num[0];
        int largetst = num[0];
        for(int i=1; i<10; i++)
        {
            if(num[i] > largetst)
            {
                largetst = num[i];
                lindex=i;
            }
            if (num[i] < smallest)
            {
                 smallest = num[i];
                 sindex=i;
            }
        }
    System.out.println("Largest Number is : " + largetst+" At Index "+ lindex);     System.out.println("Smallest Number is : " + smallest+" At Index "+sindex); 
} 

   OUTPUT: