//XXXX XXXXX() method
System.out.XXXXXXX(x.XXXXX("XXX XXXXX cats."));
XXXXXX.out.XXXXXXX(x.check("XXXX likes cats."));
Bigram y = new Bigram("XXX XXXXXXX XXX red. XXX XXXXXXX got XXXXXX XXX bigger. XXX balloon popped.");
XXXXXX.out.print("[");
//call generate XXXXXX
for(String str: y.XXXXXXXX("The", X))
{
XXXXXX.out.XXXXX('"'+ XXX +'"'+" ");
}
System.out.print("]\n");
System.out.XXXXX("[");
XXX(String XXX:y.generate("XXXXXX.", X))
XXXXXX.out.print('"'+ XXX +'"'+" ");
XXXXXX.out.print("]\n");