public String toString() {
if (declaration != null) {
return declaration.toString() + "\n" + statement.toString();
} else {
return statement.toString();
}
}
public void printWithLabels() {
System.out.println("Input Program with labels added:");
if (declaration != null) {
System.out.println(declaration.toString());
}
if (statement != null) {
statement.printWithLabels(1);
}
System.out.println();
}