第一题:需求实现
* 模拟大乐透号码:
* 一组大乐透号码由10个1-99之间的数字组成
* 定义方法,打印大乐透号码信息
* 开发提示:
* 使用数组保存录入的号码
import java.util.Random;
public class Test1 {
public static void main(String[] args) {
//int[] a = {10,20,30,40,50,60,66,70,80,99};
Random r = new Random();
int[] a = new int[10];
for (int i = 0; i < a.length; i++) {
a[i] = r.nextInt(100);
}
printNum(a);
}
public static void printNum(int[] a) {
System.out.println("您的大乐透号码为:");
for (int i = 0; i < a.length; i++) {
System.out.print(a[i] + " ");
}
}
}
第二题:需求实现
* 打印扑克牌.
* 代码实现,效果如图所示:
* 开发提示:
* 使用两个字符串数组,分别保存花色和点数
public class Test2 {
public static void main(String[] args) {
String huase[]={"黑桃","红桃","梅花","方块"};
String dianshu[]={"A","2","3","4", "5","6","7","8","9","10","J","Q","K"};
play(huase,dianshu);
}
public static void play(String[] huase ,String[] dianshu){
for (int h = 0; h < huase.length; h++) {
for (int d = 0; d < dianshu.length; d++) {
// 拼接字符串
System.out.print( huase[h] + dianshu[d]+" ");
}
// 输出换行
System.out.println();
}
}
}