这行代码调用了Random对象的nextInt方法,生成一个int类型的随机数,并将其存储在randomNumber变量中。 总结 通过以上步骤,我们成功地生成了一个int类型的随机数。如果你需要生成指定范围内的随机数,可以在调用nextInt方法时传入参数,例如: intmin=1;intmax=100;intrandomNumberInRange=min+random.nextInt(max-min+1...
class Test { static void main(args) { // Java 语法样式的循环 println "" print "( 0 ) : " for (int j = 0; j <= 9; j++) { print j + " " } // Groovy 循环 , 0 ~ 9 进行循环 println "" print "( 1 ) : " for (i in new IntRange(0, 9)) { print i + " " }...
for (i in new IntRange(0, 9)) { print i + " " } 1. 2. 3. 4. 5. 6. 执行结果 : ( 1 ) : 0 1 2 3 4 5 6 7 8 9 1. 2、使用可设置翻转属性的 IntRange 构造函数 构造函数 : /** * Creates a new non-inclusive aware IntRange. * * @param from the firs...
public class Test { public static void main(String[] args) { System.out.println(sum(LongStream.of(40,2))); // call A System.out.println(sum(LongStream.range(1,100_000_000))); //call B } public static long sum(LongStream in) { return in.sum(); } } 那么,让我们看看 sum() ...
在JDK1.2中,Random类有了一个名为nextInt()的方法:public int nextInt(int n) 给定一个参数n,nextInt(n)将返回一个大于等于0小于n的随机数,即:0 <= nextInt(n) < n。 源码: /** * Returns a pseudo-random uniformly distributed {@code int} * in the half-open range [0, n). */ public ...
e) int (*a)(int);表示一个内存空间，这个空间用来存放一个指针，这个指针指向一个函数，这个函数有...
arpit.java2blog; import java.util.Random; public class RandomNextIntMain { public static void main(String[] args) { Random random=new Random(); System.out.println("Generating 10 random integer from range of 0 to 100:"); for (int i = 0; i < 10; i++) { System.out.println(random...
int nMin = -10;int nRange = nMax-nMin;// get a random integer from 0 to nRange;int nRandomInt = random.nextInt(nRange);// what you want int nYouWant = nMax - nRandomInt;System.out.println(nYouWant);// get double random number:Random random = new Random();Double...
Returns a pseudorandom, uniformly distributedintvalue between 0 (inclusive) and the specified value (exclusive), drawn from this random number generator's sequence. The general contract ofnextIntis that oneintvalue in the specified range is pseudorandomly generated and returned. Allboundpossibleintva...
通过IntSupplier()->random::nextInt,生成无限个0到1000以内的整数,然后通过forEach获取。输出结果如下: ... 296 90 46 28 66 343 207 315 530 ... 1.2IntStream.range 生成某个数字范围内的数字集合stream,range是左闭右开的,对应还有rangeClose,左闭右闭的。 publicstaticvoid...