Try this

public class SortThreeIntegers {

public static void main(String[] args) {

int a,b,c;

//Edit these values as per your need

a=8;b=4;c=7;

    //If a is the smallest

if(a < b && a < c){

if(b < c){

    System.out.println(a+" "+b+" "+c);

}

else{

System.out.println(a+" "+c+" "+b);
}

} //if b is the smallest

else if(b < c && b < a){

if(a < c){

    System.out.println(b+" "+a+" "+c);

} else{

System.out.println(b+" "+c+" "+a);

}

}

//c is the smallest

else {

if(a < b){


    System.out.println(c+" "+a+" "+b);

}

else{

System.out.println(c+" "+b+" "+a);

        }
    }
}

}

Hi Friend,

You may try the following code:

import java.util.*;
class SortArr 
{
    public static void main(String[] args) 
    {
        Scanner input=new Scanner(System.in);
        System.out.println("Enter Array elements:");
        int arr[]=new int[3];
        for(int i=0;i<arr.length;i++){
            arr[i]=input.nextInt();
        }
        Arrays.sort(arr);
        System.out.println("Array Elements from lowest to highest: ");
        for(int i=0;i<arr.length;i++){
            System.out.println(arr[i]);
        }
        }
}

Thanks