What is the problem in this code? i really don't understand.

Question

import java.util.Scanner ;
public class PercentageCal{
public static void percent1(float a,float b){
result =a/b*100;

}

}
public class Mainclass{
public static void main(String []args){
float x=0;
float y=0;

System .out.println ("enterr x and y");
Scanner scanner = new Scanner(System.in);
x= scanner.nextFloat();
y= scanner.nextFloat();

float result =percent1(x,y);
System .out.println ("percentage is:"+result);

}
}

Answer 1

import java.util.Scanner ;
public class PercentageCal{
public static float percent1(float a,float b){
float result =a/b*100;
System.out.println ("percentage is:"+result);
return result;

}

}
public class Mainclass{
public static void main(String []args){
float x=0.0f;
float y=0.0f;

System.out.println ("enterr x and y");
Scanner scanner = new Scanner(System.in);
x= scanner.nextFloat();
y= scanner.nextFloat();
PercentageCal pc=new PercentageCal ();
float result =pc.percent1(x,y);

}

}
thank you now the code is running