public class RandomUtils extends Object
构造器和说明 |
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RandomUtils() |
限定符和类型 | 方法和说明 |
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static String |
getRadomStr(int start,
int end,
int len)
Generate radom number string 生成随机数字符串
the param (start, end) must in region [0,9] or ['A','Z'] or ['a', 'z'] e.g. (2,8) or ('A','K') |
static String |
getRadomStr09(int len) |
static String |
getRadomStr09az(int len) |
static String |
getRadomStr09AZ(int len) |
static String |
getRadomStr09AZaz(int len)
获取长度为{len}的随机字符串(0_9A_Za_z组成)
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static String |
getRadomStrAZ(int len)
获取长度为len的,范围为 'A'到'Z'的随机字母字符串
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static String |
getRadomStrAZaz(int len)
获取长度为{len}的随机字符串(A_Za_z组成)
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static double |
nextDouble()
获取 (0,1) 范围的随机实数,例如 0.019049038474404645, 0.9528710628981955
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static int |
nextInt(int n)
获取 [0,n-1] 范围的随机数
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public static double nextDouble()
public static int nextInt(int n)
public static final String getRadomStr(int start, int end, int len)
len
- [the target string's length]public static final String getRadomStrAZ(int len)
public static final String getRadomStr09(int len)
public static final String getRadomStr09AZ(int len)
public static final String getRadomStr09az(int len)
public static final String getRadomStrAZaz(int len)
len
- 随机字符串的长度public static final String getRadomStr09AZaz(int len)
len
- 随机字符串的长度Copyright © 2018 jretty-org. All rights reserved.