随笔分类 -  练习

摘要：https://blog.csdn.net/m0_67392010/article/details/124891854 https://blog.csdn.net/jianpengxuexikaifa/article/details/121028516?spm=1001.2101.3001.6650 阅读全文

摘要：public class RandomTest { public static void main(String[] args) { // 生成5个不同的随机数并放入数组中 Random random = new Random(); int[] arr = {-1,-1,-1,-1,-1}; int 阅读全文