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/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Armstrong
{
	public static void main (String[] args) throws java.lang.Exception
	{
		int n=Integer.parseInt(args[0]);
		int ans=0;
 
		while(n>0)
		{
			x=n%10;
			n=n/10;
			ans=ans+(x*x*x);
			System.out.println( "armstrong number="+ans);
		}
		// your code goes here
	}
}

Main.java:17: error: cannot find symbol
			x=n%10;
			^
  symbol:   variable x
  location: class Armstrong
Main.java:19: error: cannot find symbol
			ans=ans+(x*x*x);
			         ^
  symbol:   variable x
  location: class Armstrong
Main.java:19: error: cannot find symbol
			ans=ans+(x*x*x);
			           ^
  symbol:   variable x
  location: class Armstrong
Main.java:19: error: cannot find symbol
			ans=ans+(x*x*x);
			             ^
  symbol:   variable x
  location: class Armstrong
4 errors

Standard output is empty