import java.util.Random; public class RandomRangeExample { public static void main(String[] args) { Random rand = new Random(); // 指定范围为1到100 int min = 1; int max = 100; int randomNumber = rand.nextInt(max - min + 1) + min; System.out.println("随机数: " + randomNumber...
importjava.util.Random;publicclassRandomRangeExample{publicstaticvoidmain(String[]args){intmin=1;intmax=100;Randomrandom=newRandom();intrandomNumber=random.nextInt(max-min+1)+min;System.out.println("Random number between "+min+" and "+max+": "+randomNumber);}} 1. 2. 3. 4. 5. 6. 7...
Learn to generate random numbers (integer,float,longordouble) in a specified range (originandbound) using new methods added inJava 8inRandom,SecureRandomandThreadLocalRandomclasses. Quick Reference privatefinalstaticRandomRANDOM=newRandom();Integerr1=RANDOM.nextInt(0,100);//A random number between 0...
importjava.util.Random;publicclassRandomRangeExample{publicstaticvoidmain(String[]args){Randomrandom=newRandom();// 生成一个0到9的随机整数intnumber=random.nextInt(10);System.out.println("随机数: "+number);// 生成一个1到10的随机整数intnumberInRange=random.nextInt(10)+1;System.out.println("...
当第一次调用Math.random()方法时,自动创建了一个伪随机数生成器,实际上用的是new java.util.Random()。当接下来继续调用Math.random()方法时,就会使用这个新的伪随机数生成器。 源码如下: publicstaticdoublerandom() { Random rnd=randomNumberGenerator;if(rnd ==null) rnd = initRNG();//第一次调用,创...
import java.util.Random; public class TestRandom { public static void main(String[] args) { for (int i = 0; i < 10; i++) { System.out.println(getRandomNumberInRange(5, 10)); } } private static int getRandomNumberInRange(int min, int max) { ...
Java Copy In this example,rand.nextInt(6) + 1generates a random integer from 1 to 6, simulating a dice roll. The ‘+1’ offset is added becausenextInt(6)generates a number in the range 0-5, so adding 1 makes it 1-6 to correctly simulate the dice roll. ...
2. 生成随机整数：Random类中的ne某tInt(方法可以用来生成一个指定范围内的随机整数。例如，生成一个0到10之间的随机整数：int randomNumber = rand.ne某tInt(10);。3. 生成随机浮点数：使用Random类中的ne某tDouble(方法可以生成一个0到1之间的随机浮点数。例如，生成一个0到1之间的随机浮点数：double random...
package com.journaldev.randomnumber; import java.util.Random; import java.util.concurrent.ThreadLocalRandom; public class ThreadLocalRandomExample { public static void main(String[] args) { Runnable runnable = new MyRunnable(); for (int i = 0; i < 5; i++) { ...
import java.util.Random; public class RandomExample { public static void main(String[] args) { Random random = new Random(); int randomNumber = random.nextInt(); System.out.println("随机整数:" + randomNumber); double randomDouble = random.nextDouble(); System.out.println("随机浮点数:" ...