Java----Randomly generate content of a specified length

public class randomnumber{
Randomly generates a number + string or text of a specified length
public static String getrandomnumberandstring (int lengthofstring) {
int i=0;
int count=0;

Final String chars= "1, 2, 3, 4, 5, 6, 7, 8, 9, 0, A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z";

Final String chars = "See, Ming, Q, Li, Li, er, point, text, several, fixed, this, public, special, do, outside, child, phase, West, fruit, walk, will, month, ten, real, to, sound, car, full, letter, heavy,"
+ "Three, machine, work, material, gas, every, and, don't, true, dozen, too, new, than, only, then, husband, again, book, Ministry, Water, like, eye, etc, body, but, add, electricity, the Lord, the boundary, the door, the benefit, the sea, the subject, listens, watches,"
+ "Germany, less, grams, generations, members, Xu, Apex, first, mouth, by, death, Ann, writing, sex, horse, light, white, or, living, difficult, hope, teaching, life, flowers, knot, music, color,, one, is, I, not, people, in, he,"
+ "There is, this, one, on, on, to, to, when, big, ground, for, son, in, you, say, birth, country, year, more, pull, East, God, remember, place, let, mother, father, should, straight, Word, field, customized, newspaper, friend, close, put,"
+ "To, Zhang, recognize, connect, Sue, enter, laugh, inside, British, military, Hou, people, age, toward, ho, degrees, mountains, sleep, road, belt, million, male, edge, wind, solution, call, Ren, Jin, fast, original, eat, Mom, change, pass, teacher, stand, elephant, number,"
+ "Four, Lost, full, war, far, lattice, shi, tone, light, eye, article, it, sickness, beginning, reach, deep, complete, present, mention, Seek, Qing, Wang, the, empty, industry, think, cut, how, not, find, film, Luo, Money, 紶,, language, Yuan, Xi,"
+ "Zeng, Depart, Fei, Ke, yan, gan, Liu, Huan, about, each, namely, refers to, is, the opposite, the question, must, the, the discussion, the intersection, the end, the forest, the medicine, the late, the system, the ball, the decision, the 窢, the biography, the painting, the guarantee, the reading, the transportation
+ "Quantity, bitter, fire, cloth, goods, near, sit, produce, answer, star, fine, visual, five, even, division, BA, QI, tube, category, not, friends, and, marriage, Taiwan, night, Green, north, team, long, depending on, the more, view, fall, do, shape, shadow, red, father, Hundred,"
+ "with, on, that, and, want, she, out, also, get, in, after, from, to, will, home, can, under, and, over, day, go, can, to, small, many, but, in, heart, study,,,", all, good, see, "
+ "Starting, sending, when, not, into, only, such as, things, put, still, use, first, kind, way, think, do, kind, open, beautiful, total, from, without, sentiment, self, face, the most, female, but, present, former, some, the, the same,"
+ "Day, hand, again, line, meaning, movement, square, period, it, head, Sutra, Long, son, back, bit, sub, love, old, reason, very, give, name, law, between,,, know, world, what, two, time, make, body, person,"
+ "Be, high, already, pro, its, into, this, words, often, with, live, positive, sense, A, B, C, Ding, E, self, g, Xin, Ren, Gui, son, ugly, Yin, Mao, Chen, have, noon, not, Shen, unitary, Xu, Hai";
String[] Chararr=chars.split (",");//with, as delimiter, in the array

StringBuffer randomstr = new StringBuffer ("");
Random rnd=new random ();
int strlen = Chararr.length;

while (Count < lengthofstring) {
i = Rnd.nextint (strlen);
Randomstr.append (Chararr[i]);
count++;
}
Return randomstr.tostring (). toLowerCase ();
}


Randomly generates numbers within a specified range, without the parameters themselves
public static int Getextentrandomnumber (int extent) {
int number = (int) (Math.random () * extent);
return number;
}

Main Method Test
public static void Main (string[] args) {
System.out.println (Getrandomnumberandstring (5));
System.out.println (Getextentrandomnumber (52));
}
}

Java----Randomly generate content of a specified length