bee.tool

类 Num

java.lang.Object

bee.tool.Num

public class Num
extends java.lang.Object

构造器概要

构造器

构造器和说明
Num()

方法概要

限定符和类型	方法和说明
static java.lang.String	byte2Hex(byte[] buf)
static int	byte2int(byte[] b, int offset) byte to int
static int	bytes2int(byte[] bytes) 将bytes数组转回Integer类型
static long	bytes2long(byte[] bytes) 将bytes数据转回Long类型
static java.lang.String	byteToHex(byte b) convert signed one byte into a hexadecimal digit
static long	decryptLong(java.lang.String el)
static java.lang.String	encryptLong(long l)
static long	getLong(byte[] bb, int index)
static short	getShort(byte[] b, int index)
static void	int2byte(int n, byte[] buf, int offset) int to byte
static byte[]	int2bytes(int i) 将Integer类型转为bytes数组
static byte[]	long2bytes(long l) 将long类型转为bytes数组
static void	putLong(byte[] bb, long x, int index)
static void	putShort(byte[] b, short s, int index)
static void	short2byte(int n, byte[] buf, int offset)
static byte[]	str2Bcd(java.lang.String asc)
static long	unsigned4BytesToInt(byte[] buf, int pos) convert signed 4 bytes into a 32-bit integer
static int	unsignedByteToInt(byte b)

从类继承的方法 java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

Num

public Num()

方法详细资料

byte2int

public static int byte2int(byte[] b,
                           int offset)

byte to int

参数:

b - 待转换的字节数组

offset - 偏移量，字节数组中开始转换的位置

返回:

int

int2byte

public static void int2byte(int n,
                            byte[] buf,
                            int offset)

int to byte

参数:

n - 待转换的整形变量

buf - 转换后生成的字节数组

offset - 偏移量，字节数组中开始存放的位置

short2byte

public static void short2byte(int n,
                              byte[] buf,
                              int offset)

参数:

n - 待转换的short变量

buf - 转换后存放的byte数组

offset - 偏移量，字节数组中开始存放的位置

byte2Hex

public static java.lang.String byte2Hex(byte[] buf)

参数:

buf - 数组

返回:

十六进制字符串

unsignedByteToInt

public static int unsignedByteToInt(byte b)

byteToHex

public static java.lang.String byteToHex(byte b)

convert signed one byte into a hexadecimal digit

参数:

b - byte

返回:

convert result

unsigned4BytesToInt

public static long unsigned4BytesToInt(byte[] buf,
                                       int pos)

convert signed 4 bytes into a 32-bit integer

参数:

buf - bytes buffer

pos - beginning byte for converting

返回:

convert result

getLong

public static long getLong(byte[] bb,
                           int index)

putLong

public static void putLong(byte[] bb,
                           long x,
                           int index)

putShort

public static void putShort(byte[] b,
                            short s,
                            int index)

getShort

public static short getShort(byte[] b,
                             int index)

str2Bcd

public static byte[] str2Bcd(java.lang.String asc)

int2bytes

public static byte[] int2bytes(int i)

将Integer类型转为bytes数组

参数:

i - int

返回:

byte[]

bytes2int

public static int bytes2int(byte[] bytes)

将bytes数组转回Integer类型

参数:

bytes - 字节数组

返回:

int

long2bytes

public static byte[] long2bytes(long l)

将long类型转为bytes数组

参数:

l - long

返回:

byte[]

bytes2long

public static long bytes2long(byte[] bytes)

将bytes数据转回Long类型

参数:

bytes - byte[]

返回:

long

encryptLong

public static java.lang.String encryptLong(long l)

decryptLong

public static long decryptLong(java.lang.String el)