random scanner 类实例讲解

java

关于random类与scanner类的实例讲解

生成指定范围内的随机数Math.random() 生成随机数，随机数在0到1之间，类型是 double。代码示例：public class randCase {public static void main(String[] args) {

code
2022-4-21
47 0 0 0

Error[2]: array_keys() expects parameter 1 to be array, null given, File: /www/wwwroot/outofmemory.cn/tmp/view_template_wqo_wpcom_htm_tag.htm, Line: 137

File: /www/wwwroot/outofmemory.cn/tmp/view_template_wqo_wpcom_htm_tag.htm, Line: 137, array_keys()
File: /www/wwwroot/outofmemory.cn/tmp/route_tag.php, Line: 115, include(/www/wwwroot/outofmemory.cn/tmp/view_template_wqo_wpcom_htm_tag.htm)
File: /www/wwwroot/outofmemory.cn/tmp/index.inc.php, Line: 174, include(/www/wwwroot/outofmemory.cn/tmp/route_tag.php)
File: /www/wwwroot/outofmemory.cn/index.php, Line: 30, include(/www/wwwroot/outofmemory.cn/tmp/index.inc.php)

关于random类与scanner类的实例讲解