Question

求JAVA code: 26个字母里随机出现10个字母，其中至少含有两个元音字母（元音字母：a,e, i,o,u)

Answer 1

不知道你这10个字母中是否能出现重复的字母！

import java.util.Random;

import java.util.ArrayList;

public class RandomChar

{

public char[] Vowel = {'a', 'e', 'i', 'o', 'u'};

public String[] Consonant = {"b","c","d","f","g","h","j","k","l","m","n","p","q","r","s","t","v","w","x","y","z"};

public ArrayList Rusult = new ArrayList();

public RandomChar()

{

}

public void getChar()

{

ArrayList VowelAL = new ArrayList();

ArrayList ConsonantAL = new ArrayList();

//VowelAL = genarate(Vowel[]);

//ConsonantAL = genarate(Consonant[]);

//下面两个for循环主要输初始化arrayList

for(int i = 0; i < 21; i++ )

{

ConsonantAL.add( Consonant[i] );

}

for(int j = 0; j < 5; j++ )

{

VowelAL.add( Vowel[j] );

}

int randNum01;

int randNum02;

int randNum03;

int randNum04;

int rangeNum01 = 21;

int rangeNum02 = 5;

int ConsonantNum = 8;

int VowelNum = 2;//这个是代表输出8个辅音的同时输出元音的个数

for(int i = 0; i< ConsonantNum; i++)

{

Random ran = new Random(System.currentTimeMillis()+i);

randNum01 = ran.nextInt(rangeNum01);

randNum02 = ran.nextInt(2);

//randNum02主要是来控制是否输出元音，

//这个数也是随机的因此在结果集中的位置就是随机的了

if(randNum02 == 1 && VowelNum !=0)

{

randNum03 = ran.nextInt(rangeNum02);

System.out.print(VowelAL.get(randNum03));

Rusult.add(VowelAL.get(randNum03));

VowelAL.remove(randNum03);//通过remove语句将输出过的字符删除

VowelNum = VowelNum - 1;//元音已输出个数减一

rangeNum02 = rangeNum02 - 1;//同样随机数的范围减一

}

System.out.print(ConsonantAL.get(randNum01));

Rusult.add(ConsonantAL.get(randNum01));

ConsonantAL.remove(randNum01);//通过remove语句将输出过的字符删除

rangeNum01 = rangeNum01 -1;//同样随机数的范围减一

}

//判断是否已经输出2个字符，没有则在后面补充输入；这样的情况同样是随机的

if (VowelNum != 0)

{

for (int k = 0; k < VowelNum; k++)

{

Random ran = new Random(System.currentTimeMillis());

randNum04 = ran.nextInt(rangeNum02);

System.out.print(VowelAL.get(randNum04));

Rusult.add(VowelAL.get(randNum04));

VowelAL.remove(randNum04);

rangeNum02 = rangeNum02 -1;

}

}

}

public void PrintRes()

{

for(int i = 0; i < 10 ; i++)

{

System.out.println(Rusult.get(i));

}

}

public static void main(String str[])

{

RandomChar rand = new RandomChar();

System.out.print("下面是getChar函数中的print输出的字符：");

rand.getChar();

System.out.println();

System.out.println("下面是PrintRes函数中通过存储的Arraylist输出的字符：");

rand.PrintRes();

}

}