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java.lang.Object java.lang.System
public final class System
System utilities.
Field Summary | |
---|---|
static PrintStream |
err
|
static PrintStream |
out
|
Method Summary | |
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static void |
arraycopy(Object src,
int srcOffset,
Object dest,
int destOffset,
int length)
Copies one array to another. |
static long |
currentTimeMillis()
Current time expressed in milliseconds. |
static void |
exit(int code)
Terminate the application. |
static void |
gc()
Collect garbage |
static String |
getProperty(String name)
Returns null . |
static String |
getProperty(String name,
String def)
Returns def . |
static Runtime |
getRuntime()
Get the singleton instance of Runtime. |
static int |
identityHashCode(Object obj)
|
static long |
nanoTime()
Return the time since system start in nano-seconds |
static void |
setErr(PrintStream err)
Redirect System.err |
static void |
setOut(PrintStream out)
Redirect System.out |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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public static PrintStream out
public static PrintStream err
Method Detail |
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public static void arraycopy(Object src, int srcOffset, Object dest, int destOffset, int length)
public static void exit(int code)
public static long currentTimeMillis()
public static String getProperty(String name)
null
. In leJOS, there are no system properties. So this function returns null
.
name
- name of the system property
null
public static String getProperty(String name, String def)
def
. In leJOS, there are no system properties. So this function returns def
.
name
- name of the system propertydef
- default value that is returns if system property doesn't exist
def
public static Runtime getRuntime()
public static int identityHashCode(Object obj)
public static void gc()
public static void setOut(PrintStream out)
out
- a PrintStreampublic static void setErr(PrintStream err)
err
- a PrintStreampublic static long nanoTime()
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