I have an assignment in which we are instructed to create a method which takes a string, scrambles the content of the string, and then returns the scrambled string (ie “Hello” returns “elloH”). However, we are only allowed to do this via loops and basic string functions (no arrays can …
Tag: random
Randomly choose between of +, -, or * and apply it to two numbers
Good day I am new to java and would like to know if there is a way for me to randomly choose between multiplication and addition and apply it to two numbers. Any guidance would be appreciated. Answer I guess a code like the following could work:
How to implement a benchmark for a java mergesort program?
I want to implement a benchmark where the Method MergeSort and it’s performance is measured. I have tried to fill the array that is to be mergesorted with random numbers but when the code is run the array prints the same random number 10 times. Why is this? PS. I can’t post the entire program I ha…
Are there any java.util.random seeds with bad/weird properties? [closed]
Closed. This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 6 months ago. Improve this question I’m curious if there are seeds for java.util.random which have weird/surprising prope…
Drawing raffle numbers out of list that can have duplicates in Java
I was trying to learn programming by writing code with friends, we are all new though and are stuck with this raffle program. Players can earn multiple raffle tickets. The raffle tickets are written down in a new row in an ArrayList when they are earned. It looks like this: “PlayerA PlayerB PlayerB Play…
Frequency of each value in an array of random integers
Need help with an assignment where I have to generate random runs between 1 to 6 for 30 balls and get : 1.Total runs scored 2.Number of 0s, 1s, 2s, 3s, 4s and 6s 3.Strike Rate While I have got ‘Total runs’ and ‘Strike rate’, I am unable to get the frequency of 0s,1s… I have tried…
What is the distribution of math.random in Java?
I want to use math.random() in a Java program. What is the distribution of this way of getting doubles? Answer This is documented in the Java SE API docs: public static double random() Returns a double value with a positive sign, greater than or equal to 0.0 and less than 1.0. Returned values are chosen pseud…
How to get java to recognize a certain group of random integers
It’s slightly hard to explain but I’m making a basic system were it would have a random chance to output something else, I have a single integer that can be different, and need java to be able to know when this said integer is going to be 580-599. I’m Completely stuck and I’m new to ja…
how to make the Value “B” & “K” fill only certain number of cells Randomly
I have board made from class in Java with values (K, L) that will randomly fill the board. I wonder how to make the value “K” fill only certain number of cells (8 cells) randomly and the rest “L” would fill the board. My aim is to get a board where “K” appears 8 times and t…
How can I create an Array in Descending Order?
I’m working on this project using Arrays. I have a method called createRandomIntArray that creates an array. This method is meant to return the Array in descending order. I have been able to do just that but I want to know if there is a more effective way to write this method than the way I wrote it. I …