Engine Java, Java - rextester

Engine Java

//'main' method must be in a class 'Rextester'.
//openjdk version '11.0.5'

import java.util.*;
import java.lang.*;
class Engine{
   
    private int engineId;
    private String engineName;
    private String engineType;
    private double enginePrice;
    public Engine(int id,String name,String type,double price)
    {
        engineId=id;
        engineName=name;
        engineType=type;
        enginePrice=price;
    }
    
    public int getEngineId()
    {
        return engineId;
    }
    public double getEnginePrice()
    {
        return enginePrice;
    }
    public String getEngineName()
    {
        return engineName;
    }
    public String getEngineType()
    {
        return engineType;
    }
}
class Rextester
{  
    public static void main (String[] args)
	{
		
		Scanner sc = new Scanner(System.in);
		
		Engine[] eng = new Engine[4];
		
		for(int i=0;i<eng.length;i++)
		{
		    int engineid = sc.nextInt();
		    sc.nextLine();
		    String enginename=sc.nextLine();
		    String enginetype=sc.nextLine();
		    double engineprice=sc.nextDouble();
		    eng[i] = new Engine(engineid,enginename,enginetype,engineprice);
		}
		
		sc.nextLine();
		String type = sc.nextLine();
		String name = sc.nextLine();
		
		double ans = findAvgEnginePriceByType(type,eng);
		
		if(ans>0) System.out.println(ans);
		
		else System.out.println("There are no engine with given type");
		
		Engine[] ans1 = searchEngineByName(name,eng);
		
		if(ans1[0]==null) System.out.println("there are no engine with given name");
		
		else
		{
		    int j=0;
		    
		    while(ans1[j]!=null)
		    {
		        System.out.println(ans1[j].getEngineId());
		        j++;
		    }
		}
		
	}
    public static double findAvgEnginePriceByType (String type,Engine en[])
    {
        int sz=0;
        double price=0;
        for(int i=0;i<4;i++)
        {
            if((en[i].getEngineType()).equalsIgnoreCase(type))
            {
                sz++;
                price+=en[i].getEnginePrice();
            }
        }
        price=price/sz;
        return price;
        
    }
    public static Engine [] searchEngineByName(String  name,Engine en[])
    {
        int sz=0;
        for(int i=0;i<4;i++)
        {
            if((en[i].getEngineName()).equalsIgnoreCase(name))
            {
                sz++;
            }
        }
        if(sz==0)
            return null;
        Engine ans[]=new Engine[sz];
        int k=0;
        for(int i=0;i<4;i++)
        {
            if((en[i].getEngineName()).equalsIgnoreCase(name))
            {
                ans[k++]=en[i];
            }
        }
        Engine temp;
        for (int i = 0; i < sz;i++)
        {
            for(int j=i;j<sz;j++)
            {
                if(ans[i].getEngineId()>ans[j].getEngineId())
                {
                    temp=ans[i];
                    ans[i]=ans[j];
                    ans[j]=temp;
                }
            }
        }
        return ans;
        
            }
}

/*
Link=>https://codebashers10.blogspot.com/2021/04/TCS-Xplore-CPA-27-march-2021-Shift-2-Java-Coding-Solution.html


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