storage/logs/laravel.log" could not be opened: failed to open stream: Permission denied
$ chmod -R 775 storage bootstrap/cachestorage/logs/laravel.log" could not be opened: failed to open stream: Permission denied
$ chmod -R 775 storage bootstrap/cachelaravel.log" could not be opened in append mode
config.vm.synced_folder "./app","/var/www/", create:true,
:owner => "vagrant",
:group => "www-data",
:mount_options => ["dmode=775","fmode=664"]random number in range java
(int)(Math.random() * ((max - min) + 1)) + min
Copyhow to get random number in java in range
private static int getRandomNumberInRange(int min, int max)
{
if (min >= max) {
throw new IllegalArgumentException("max must be greater than min");
}
Random r = new Random();
return r.nextInt((max - min) + 1) + min;
}
//Random().nextInt(int bound) = Random integer from 0 (inclusive) to bound (exclusive)
//1. nextInt(range) = nextInt(max - min)
new Random().nextInt(5); // [0...4] [min = 0, max = 4]
new Random().nextInt(6); // [0...5]
new Random().nextInt(7); // [0...6]
new Random().nextInt(8); // [0...7]
new Random().nextInt(9); // [0...8]
new Random().nextInt(10); // [0...9]
new Random().nextInt(11); // [0...10]
//2. To include the last value (max value) = (range + 1)
new Random().nextInt(5 + 1) // [0...5] [min = 0, max = 5]
new Random().nextInt(6 + 1) // [0...6]
new Random().nextInt(7 + 1) // [0...7]
new Random().nextInt(8 + 1) // [0...8]
new Random().nextInt(9 + 1) // [0...9]
new Random().nextInt(10 + 1) // [0...10]
new Random().nextInt(11 + 1) // [0...11]
//3. To define a start value (min value) in a range,
// For example, the range should start from 10 = (range + 1) + min
new Random().nextInt(5 + 1) + 10 // [0...5] + 10 = [10...15]
new Random().nextInt(6 + 1) + 10 // [0...6] + 10 = [10...16]
new Random().nextInt(7 + 1) + 10 // [0...7] + 10 = [10...17]
new Random().nextInt(8 + 1) + 10 // [0...8] + 10 = [10...18]
new Random().nextInt(9 + 1) + 10 // [0...9] + 10 = [10...19]
new Random().nextInt(10 + 1) + 10 // [0...10] + 10 = [10...20]
new Random().nextInt(11 + 1) + 10 // [0...11] + 10 = [10...21]
// Range = (max - min)
// So, the final formula is ((max - min) + 1) + min
//4. Test [10...30]
// min = 10 , max = 30, range = (max - min)
new Random().nextInt((max - min) + 1) + min
new Random().nextInt((30 - 10) + 1) + 10
new Random().nextInt((20) + 1) + 10
new Random().nextInt(21) + 10 //[0...20] + 10 = [10...30]
//5. Test [15...99]
// min = 15 , max = 99, range = (max - min)
new Random().nextInt((max - min) + 1) + min
new Random().nextInt((99 - 15) + 1) + 15
new Random().nextInt((84) + 1) + 15
new Random().nextInt(85) + 15 //[0...84] + 15 = [15...99]
//Done, understand?Copyright © 2021 Codeinu
Forgot your account's password or having trouble logging into your Account? Don't worry, we'll help you to get back your account. Enter your email address and we'll send you a recovery link to reset your password. If you are experiencing problems resetting your password contact us
