Sorting system properties 1

[mscano]

I am interested in knowing how to sort a Properties object. When compiling the following lines of code:

Map prop = System.getProperties();
TreeMap tm = new TreeMap(prop);

I get the following error:

Note: E:\Java\src\PropertiesExample.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.

Please advise.

 

[sedj]

Its just the 1.5 compiler warning you about using a possibly non-safe object type. Theres nothing actually wrong with the code - its just that in 1.5 Java introduced "Generics" - or templates in C++ - and its just a warning about that.

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