net.hasor.cobble

类 SystemUtils

java.lang.Object

net.hasor.cobble.SystemUtils

public final class SystemUtils
extends Object

从以下版本开始:

1.0

构造器概要

构造器

构造器和说明
SystemUtils() NumberUtils instances should NOT be constructed in standard programming.

方法概要

限定符和类型	方法和说明
static int	getJavaVersion()
static String	getSystemProperty(String key) Returns the value of the Java system property with the specified key, while falling back to null if the property access fails.
static String	getSystemProperty(String key, String defaultValue) Returns the value of the Java system property with the specified key, while falling back to the specified default value if the property access fails.
static boolean	isAndroid()
static boolean	isIkvmDotNet() Returns true if the running JVM is IKVM.NET, false otherwise.
static boolean	isJ9Jvm() Returns true if the running JVM is either IBM J9 or Eclipse OpenJ9, false otherwise.
static boolean	isOsx() Return true if the JVM is running on OSX / MacOS
static boolean	isSupperUser()
static boolean	isWindows() Return true if the JVM is running on Windows

从类继承的方法 java.lang.Object

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

构造器详细资料

SystemUtils

public SystemUtils()

NumberUtils instances should NOT be constructed in standard programming. Instead, the class should be used as NumberUtils.stringToInt("6");.

This constructor is public to permit tools that require a JavaBean instance to operate.

方法详细资料

getSystemProperty

public static String getSystemProperty(String key)

Returns the value of the Java system property with the specified key, while falling back to null if the property access fails.

返回:

the property value or null

getSystemProperty

public static String getSystemProperty(String key,
                                       String defaultValue)

Returns the value of the Java system property with the specified key, while falling back to the specified default value if the property access fails.

返回:

the property value. def if there's no such property or if an access to the specified property is not allowed.

isWindows

public static boolean isWindows()

Return true if the JVM is running on Windows

isAndroid

public static boolean isAndroid()

isOsx

public static boolean isOsx()

Return true if the JVM is running on OSX / MacOS

isJ9Jvm

public static boolean isJ9Jvm()

Returns true if the running JVM is either IBM J9 or Eclipse OpenJ9, false otherwise.

isIkvmDotNet

public static boolean isIkvmDotNet()

Returns true if the running JVM is IKVM.NET, false otherwise.

isSupperUser

public static boolean isSupperUser()

getJavaVersion

public static int getJavaVersion()