关于Java大学社团笔试题 Java 2D API 是强大的和webapi 复杂对象的。

来源：蜘蛛抓取(WebSpider) 时间：2016-09-18 08:55 标签： webapi 复杂对象
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你可能喜欢我目前在英国上大学，学校给的java题目，求高手给答案_java吧_百度贴吧
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我目前在英国上大学，学校给的java题目，求高手给答案收藏
Exercises 4. Create a public class NumberList which declares a field (named list) with type array of doubles. The array should be created by a constructor which is parameterized with the length of the array. Add a method print which prints the array as a sequence of numbers. Add to this class a method randomFill which fills the array in field list with pseudo-random numbers of type double. Hint: there is a Java API class for pseudo-random numbers. Demonstrate in the main method of your class that your code is working correctly.20 marksExercises 5. Write a static method isPrime(int n) that returns true if the parameter n is a prime number, and false if is not. A number n is prime is the number can not be divided my an number smaller than n with the exception of 1. Demonstrate in the main method of your class that your code is working correctly.
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英语啊英语..............................凌乱了
好几个单词不认识，看的有些吃力，等你自己先翻译了，看了前几句，感觉不难。
Exercises 4. Create a public class NumberList which declares a field (named list) with type array of doubles. The array should be created by a constructor which is parameterized with the length of the array. Add a method print which prints the array as a sequence of numbers. Add to this class a method randomFill which fills the array in field list with pseudo-random numbers of type double. Hint: there is a Java API class for pseudo-random numbers. Demonstrate in the main method of your class that your code is working correctly.20 marksExercises 5. Write a static method isPrime(int n) that returns true if the parameter n is a prime number, and false if is not. A number n is prime is the number can not be divided my an number smaller than n with the exception of 1. Demonstrate in the main method of your class that your code is working correctly.练习4 创建一个公共类 NUmberList，这个类生明了double类型的数组的属性，数组由结构体方法创造，结构体参数决定数组长度。添加一个方法打印数组种的数。 创建一个randomFill方法用伪随机数填充这个double类型的数组。提示：有一个（现成的）java API类来产生伪随机数。在main 方法里证明你的代码可以正确运行。20分
Exercises 5. Write a static method isPrime(int n) that returns true if the parameter n is a prime number, and false if is not. A number n is prime is the number can not be divided my an number smaller than n with the exception of 1. Demonstrate in the main method of your class that your code is working correctly.练习5 写一个静态方法 isPrime(int n)（判断素数），如果n是素数就fanhuitrue，否则false。 n如果是素数的话，他就不可以被除了1外的其他任何小于n的数整除。在main 方法里证明你的代码可以正确运行。
给你一个练习5的答案public class bbb { /**
*/ public static void main(String[] args) {
// TODO Auto-generated method stub
while(n!=999)
{System.out.println("输入数");
Scanner sc=new Scanner(System.in);
n= sc.nextInt();
isPrime(n);
public static void isPrime(int n) {
boolean flag=
for (int a=2;a&n;a++)
if(n%a==0)
System.out.println("不是素数");
System.out.println("是素数"); }}
4 public class NumberList{
public NumberList(int n){
this.array = new double[n];
public void printArray(double[] a){
for(double i: a)
System.out.println(i);
public void randomFill(double[] a){
for(int i = 0; i&a. i++){
a[i] = Math.random();
public static void main(String args[]){
NumberList nl = new NumberList(20);
nl.randomFill(nl.array);
nl.printArray(nl.array);
你好。我也在学习Java。
有钱不会花
晕！！！搞什么英语嘛
亏得还算是个留学生这种题都要问
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