Consider the following program:

public class rect $\{$

int breadth;

int length;

public static void main$($String args$[])\{$

rect obj $1=$ new rect $0$ ;

rect obj $2=$ new rect $0$ ;

obj $1.$ breadth $=10$;

obj$1.$ length $=20$;

obj$2=$ obj$1$;

System.out.println$($obj$2.$length$)$:

$\}.$

$\}$