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<H1>java.lang.System</H1>
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<LI> A number of useful class fields and methods.
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<LI> Always available (static).
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<LI> Cannot be instantiated.
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<LI> Access to externally defined properties.
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<LI> Streams in,out,err.
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<LI>
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void arraycopy(Object, int, Object, int, int)
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Properties getProperties()
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void setProperties(Properties)
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String getProperty(String)
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String getProperty(String, String)
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void exit(int)
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void load(String)
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void loadLibrary(String) Streams :
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