Answers for "why random in java return only the numbers smaller than 1"

java random number between 1 and 10

/* First Method */
int random = (int) (Math.random() * 100 + 1); /* Random number between 1 and 100*/
int random = (int) (Math.random() * 65 + 1); /* Random number between 1 and 65*/
/* Second Method */
import java.util.Random;
Random randnumber = new Random();
int number = randnumber.nextInt(100); /* between 1 and 100*/
system.out.println(number);