/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
import java.util.stream.Collectors ; 
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		String input = "an\0Example" ;
        System.out.println(
            Arrays.toString(
                input.codePoints().toArray()
            )
        );
 
    StringBuilder sb = new StringBuilder() ;
    for( int codePoint : input.codePoints().toArray() ){
        if( ! Character.isISOControl( codePoint ) ) {
            sb.appendCodePoint( codePoint ) ;
        }
     }
    String output = sb.toString() ;
 
    System.out.println( output ) ;
    System.out.println( Arrays.toString( output.codePoints().toArray() ) ) ;
    System.out.println( output.codePoints().mapToObj( Character :: toString ).collect( Collectors.toList() ) ) ;
	}
}

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