I need help making a program in java that lets you write a number in textField and then generate that amount of random numbers from 0-9 using i = (int) (Math.random() * 10.0). For example if I would write 5 in the textField the program would generate 5 random numbers from 0-9.
Thanks
Using the new Java 8 streams API:
int n = Integer.parseInt(myTextField.getText());
int[] random = ThreadLocalRandom.current().ints(0, 10).limit(n).toArray();
Random
instance) int x = value entered in textfield;
int generatedRandomNumber = 0;
java.util.Random rand = new java.util.Random();
for(int i=0 ; i<x ; i++) {
generatedRandomNumber=rand.nextInt(10);//here you have your random number, do whatever you want....
}
Ok since you want to use the Math.random() method try the following:
int times = 5;//how many numbers to output
for(int i = 0; i < times; i++)
{
System.out.println((int)(Math.random()*10));
//you must cast the output of Math.random() to int since it returns double values
}
I multiplied by 10 because Math.random() returns a value greater than or equal to 0.0 and less than 1.0.
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.