What do you want to save?
Add Code snippet
New code examples
-
Java 2021-11-15 14:11:43
Attempt to invoke virtual method 'int java.util.Random.nextInt(int)' on a null object reference
the problem: java.lang.NullPointerException: Attempt to invoke virtual method 'int java.util.Random.nextInt(int)' on a null object reference //you might do not code that: Random rand = new Random(); Add solution -
Other 2021-11-12 17:00:20
Random random = new Random(); StringBuilder builder = new StringBuilder(count); for (int i = 0; i < count; i++) { builder.append(Numbers.charAt(random.nextInt(Numbers.length())));
Random random = new Random(); StringBuilder builder = new StringBuilder(count); for (int i = 0; i < count; i++) { builder.append(Numbers.charAt(random.nextInt(Numbers.length()))); Add solution -
Java 2021-10-17 07:47:11
java get random index from array
String[] available_cards = {"1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "Queen", "King", "Jack", "Ace"}; j... Add solution -
Java 2021-10-15 06:52:04
random item from arraylist
ArrayList<Type> arraylistName = new ArrayList<>(); // add items to arraylist arraylistName.add(item1); arraylistName.add(item2); arraylistName.add(item3); Random random = new Random(); // random index between 0 and arraylistName.size(); int ... Add solution -
Other 2021-10-09 00:04:04
random kotlin cannot create instance of abstract class
Just remove the parentheses: Random.nextInt(7). Like this it uses the companion object (Default) of class Random which implements the abstract class Random with a default behaviour. From the documentation: The companion object Random.Default is the d... Add solution -
Dart 2021-10-07 10:29:04
how to return a random number from a list in dart
import "dart:math"; void main() { var list = ['a','b','c','d']; var element = getRandomElement(list); print(element); } T getRandomElement<T>(List<T> list) { final random = new Random(); var i = random.nextInt(... Add solution -
C# 2021-10-04 09:34:06
generate random light color android
final Random mRandom = new Random(System.currentTimeMillis()); public int generateRandomColor() { // This is the base color which will be mixed with the generated one final int baseColor = Color.WHITE; final int baseRed = Color.red(baseColor... Add solution -
Java 2021-09-30 13:16:06
how to draw a graph in java
import java.awt.BasicStroke; import java.awt.Color; import java.awt.Dimension; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.Point; import java.awt.RenderingHints; import java.awt.Stroke; import java.util.ArrayList; import java.uti... Add solution