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ByteArrayUtil
public
class
ByteArrayUtil
extends Object
| java.lang.Object
|
| ↳ |
com.android.tradefed.util.ByteArrayUtil
|
Utilities to operate on byte array, e.g., convert bytes to integer.
Java doesn't have an unsigned value type, so expansion is needed to convert an unsigned
integer stored in 4 bytes to a long value, or unsigned short stored in 2 bytes to an integer
value.
Summary
Public methods |
|---|
static
int
|
getInt(byte[] bytes, int offset, int length)
Get an integer from the given bytes.
|
static
long
|
getLong(byte[] bytes, int offset, int length)
Get a long value from the given bytes.
|
static
String
|
getString(byte[] bytes, int offset, int length)
Get the string from the given bytes.
|
Public constructors
ByteArrayUtil
public ByteArrayUtil ()
Public methods
getInt
public static int getInt (byte[] bytes,
int offset,
int length)
Get an integer from the given bytes.
java doesn't have an unsigned value type, so expansion is needed to convert an unsigned
short stored in 2 bytes to an integer value.
| Parameters |
|---|
bytes |
byte: an array of bytes. |
offset |
int: the start offset of the integer data. |
length |
int: the length of the integer data. |
| Returns |
|---|
int |
an int value from the given bytes. |
getLong
public static long getLong (byte[] bytes,
int offset,
int length)
Get a long value from the given bytes.
java doesn't have an unsigned value type, so expansion is needed to convert an unsigned
integer stored in 4 bytes to a long value.
| Parameters |
|---|
bytes |
byte: an array of bytes. |
offset |
int: the start offset of the long value. |
length |
int: the length of the long value. |
| Returns |
|---|
long |
a long value from the given bytes. |
getString
public static String getString (byte[] bytes,
int offset,
int length)
Get the string from the given bytes.
| Parameters |
|---|
bytes |
byte: an array of bytes. |
offset |
int: the start offset of the string data. |
length |
int: the length of the string data. |
Content and code samples on this page are subject to the licenses described in the Content License. Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.
Last updated 2023-03-08 UTC.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2023-03-08 UTC."],[],[],null,["# ByteArrayUtil\n=============\n\n\n`\npublic\n\n\nclass\nByteArrayUtil\n`\n\n\n`\n\nextends Object\n\n\n`\n\n`\n\n\n`\n\n|---|-----------------------------------------|\n| java.lang.Object ||\n| ↳ | com.android.tradefed.util.ByteArrayUtil |\n\n\u003cbr /\u003e\n\n*** ** * ** ***\n\nUtilities to operate on byte array, e.g., convert bytes to integer.\n\nJava doesn't have an unsigned value type, so expansion is needed to convert an unsigned\ninteger stored in 4 bytes to a long value, or unsigned short stored in 2 bytes to an integer\nvalue.\n\nSummary\n-------\n\n| ### Public constructors ||\n|----------------------------------------------------------------------------------------------------------------------------|---|\n| ` `[ByteArrayUtil](../../../../../../reference/tradefed/com/android/tradefed/util/ByteArrayUtil.html#ByteArrayUtil())`() ` |\n\n| ### Public methods ||\n|------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| ` static int` | ` `[getInt](../../../../../../reference/tradefed/com/android/tradefed/util/ByteArrayUtil.html#getInt(byte[],%20int,%20int))`(byte[] bytes, int offset, int length) ` Get an integer from the given bytes. |\n| ` static long` | ` `[getLong](../../../../../../reference/tradefed/com/android/tradefed/util/ByteArrayUtil.html#getLong(byte[],%20int,%20int))`(byte[] bytes, int offset, int length) ` Get a long value from the given bytes. |\n| ` static String` | ` `[getString](../../../../../../reference/tradefed/com/android/tradefed/util/ByteArrayUtil.html#getString(byte[],%20int,%20int))`(byte[] bytes, int offset, int length) ` Get the string from the given bytes. |\n\nPublic constructors\n-------------------\n\n### ByteArrayUtil\n\n```\npublic ByteArrayUtil ()\n```\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\nPublic methods\n--------------\n\n### getInt\n\n```\npublic static int getInt (byte[] bytes, \n int offset, \n int length)\n```\n\nGet an integer from the given bytes.\n\njava doesn't have an unsigned value type, so expansion is needed to convert an unsigned\nshort stored in 2 bytes to an integer value.\n\n\u003cbr /\u003e\n\n| Parameters ||\n|----------|-----------------------------------------------------|\n| `bytes` | `byte`: an array of bytes. \u003cbr /\u003e |\n| `offset` | `int`: the start offset of the integer data. \u003cbr /\u003e |\n| `length` | `int`: the length of the integer data. \u003cbr /\u003e |\n\n| Returns ||\n|-------|-------------------------------------------|\n| `int` | an int value from the given bytes. \u003cbr /\u003e |\n\n### getLong\n\n```\npublic static long getLong (byte[] bytes, \n int offset, \n int length)\n```\n\nGet a long value from the given bytes.\n\njava doesn't have an unsigned value type, so expansion is needed to convert an unsigned\ninteger stored in 4 bytes to a long value.\n\n\u003cbr /\u003e\n\n| Parameters ||\n|----------|---------------------------------------------------|\n| `bytes` | `byte`: an array of bytes. \u003cbr /\u003e |\n| `offset` | `int`: the start offset of the long value. \u003cbr /\u003e |\n| `length` | `int`: the length of the long value. \u003cbr /\u003e |\n\n| Returns ||\n|--------|-------------------------------------------|\n| `long` | a long value from the given bytes. \u003cbr /\u003e |\n\n### getString\n\n```\npublic static String getString (byte[] bytes, \n int offset, \n int length)\n```\n\nGet the string from the given bytes.\n\n\u003cbr /\u003e\n\n| Parameters ||\n|----------|----------------------------------------------------|\n| `bytes` | `byte`: an array of bytes. \u003cbr /\u003e |\n| `offset` | `int`: the start offset of the string data. \u003cbr /\u003e |\n| `length` | `int`: the length of the string data. \u003cbr /\u003e |\n\n| Returns ||\n|----------|--------|\n| `String` | \u003cbr /\u003e |"]]
