PHP直播源碼,擷取随機數,随機字元串的相關代碼
private void randomTest() {
Random random = new Random();
Log.e(TAG, "randomTest1: " + random.nextLong());
Log.e(TAG, "randomTest2: " + random.nextBoolean());
Log.e(TAG, "randomTest3: " + random.nextDouble());
Log.e(TAG, "randomTest4: " + random.nextFloat());
Log.e(TAG, "randomTest5: " + random.nextGaussian());//可以産生服從高斯分布的随機數
Log.e(TAG, "randomTest6: " + random.nextInt());
//範圍内的随機數
int min = 10;
int max = 99;
int num = random.nextInt(max - min + 1) + min;
Log.e(TAG, "randomTest7: " + num);
}
/**
* 擷取一條随機字元串
* @param length
* @return
*/
public String getRandomString(int length) { //length表示生成字元串的長度
String base = "abcdefghijklmnopqrstuvwxyz0123456789";
Random random = new Random();
StringBuffer sb = new StringBuffer();
for (int i = 0; i < length; i++) {
int number = random.nextInt(base.length());
sb.append(base.charAt(number));
}
Log.e(TAG, "getRandomString: " + sb.toString());
return sb.toString();
}
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