java penjualan menggunakan IF

import java.io.*;
public class lat4
{
 public static void main(String args[])
  {
 
 double hasil,luas,total,diskon;
  try 
 {
 	BufferedReader inputA=new BufferedReader (new InputStreamReader(System.in));
	System.out.print("jenis keramik	: ");
	String input1=inputA.readLine();
	
	
	BufferedReader ts=new BufferedReader (new InputStreamReader(System.in));
	System.out.print("harga/m2	: ");
	String input2=ts.readLine();
	double B=Double.parseDouble(input2);
	System.out.println(" ");
	System.out.println("ukuran keramik	");
	System.out.println(" ");
	BufferedReader pj=new BufferedReader (new InputStreamReader(System.in));
	System.out.print("panjang	: ");
	String input3=pj.readLine();
	double C=Double.parseDouble(input3);
	BufferedReader lb=new BufferedReader (new InputStreamReader(System.in));
	System.out.print("lebar	: ");
	String input4=lb.readLine();
	double D=Double.parseDouble(input4);

	
	luas=(C*D);
	
	
	if (luas>=10)
	{
		}
		else
		{System.out.println("di tolak");
		System.exit(0);
		}
		
		total=(luas*B);
	diskon=(total*0.1);
	hasil=(total-diskon);
	
	System.out.println("Luas keramik "+luas+" meter persegi");
	System.out.println("total		=Rp "+total);
	System.out.println("diskon		=Rp "+diskon);
	System.out.println("total bayar	=Rp "+hasil);
	
}
catch (IOException e)
{
e.printStackTrace();
}
}
}

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