Java code to find smallest number in an array

Karmehavannan

7 years ago

Java code to find smallest number in an array

In this tutorial, we will discuss the concept of Java code to find the smallest number of an Array

In this topic, we learn how to find the smallest element of an array(Collection of elements)

This program gets “n” number of elements and Enter the elements of the array as input from the user. then, this program finds and displays the smallest elements from the array using for loops.

In this programs, we can see step by step procedure for completion of the program.

array declaration
Essential variable declaration
Get input from the user for array length
Get input from the user for array elements
loop for finding the smallest value
Display result on the screen

Find the smallest value – integer Array

import java.util.Scanner;
class Small_num1{
public static void main (String args[]){
Scanner scan=new Scanner(System.in);
System.out.print("Enter the number of elements in an array: ");
int min;
int n=scan.nextInt();//get input from user for array length
int arr[]=new int[n]; //declaring an array of n elements

//for loop takes input from user
for(int i=0; i<n; i++){
   System.out.print("Enter the element "+(i+1)+": ");
   arr[i]=scan.nextInt();//takes input from user for array
   }
   min=arr[0];
   for(int i=0; i<n; i++){
     if(min>arr[i]){//loop for find smallest elements in array
       min=arr[i];
     }
   }
   System.out.print("\nThe smallest elements is: "+min);
}//display result on the result
}

When the above code is compiled and executed, it produces the following results

Enter the number of elements in an array: 5
Enter the element 1: 45
Enter the element 2: 32
Enter the element 3: 56
Enter the element 4: 23
Enter the element 5: 78

The smallest elements is:23

Find the smallest value – float Array

Program 1

import java.util.Scanner;
class Small_num{
public static void main (String args[]){
Scanner scan=new Scanner(System.in);
System.out.print("Enter the number of elements in an array: ");
float min;
int n=scan.nextInt();//get input from user for array length
float arr[]=new float[n]; //declaring an array of n elements

//for loop takes input from user
for(int i=0; i<n; i++){
   System.out.print("Enter the element "+(i+1)+": ");
   arr[i]=scan.nextFloat();//takes input from user for array
   }
   min=arr[0];
   for(int i=0; i<n; i++){
     if(min>arr[i]){
       min=arr[i];
     }
   }
   System.out.print("\nThe smallest value is: "+min);
}//display result on the result
}

When the above code is compiled and executed, it produces the following results

Enter the number of elements in an array: 5
Enter the element 1: 4.6
Enter the element 2: 3.1
Enter the element 3: 6.7
Enter the element 4: 5.3
Enter the element 5: 1.3

The smallest value is: 1.3

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