The given code accepts the sides of triangle from the user. Pass the sides to a function decide(int x,int y,int z) which checks and prints whether the triangle is equilateral,isosceles or scalene.

import java.util.*;

class TypeOFTriangle 
{
    public static void decide(int side1,int side2,int side3){
        String type="";
            if(side1 == side2 && side2 == side3){
            type = "Equilateral";
            }
            else if(side1 == side2 && side2 != side3){
            type = "Isosceles";
            }
            else if(side1 == side3 && side2 != side3){
            type = "Isosceles";
            }
            else if(side1 != side3 && side2 == side3)
            type = "isosceles";

            else
            type = "Scalene";

            System.out.println(type);
    }
    public static void main(String[] args) 
    {
        Scanner input=new Scanner(System.in);
        System.out.print("Enter side 1: ");
        int side1=input.nextInt();

        System.out.print("Enter side 2: ");
        int side2=input.nextInt();

        System.out.print("Enter side 3: ");
        int side3=input.nextInt();

        decide(side1,side2,side3);

    }
}