Java NetBeans Compiling Error

Question

When compiling my Code, it highlights this in red:

    Note: /Users/myName/NetBeansProjects/CardGame/src/cardgame/Hand.java uses unchecked or unsafe operations.
    Note: Recompile with -Xlint:unchecked for details.

It still compiles and runs the program without fault (so far)... I was just curious to whether anyone would know whats causing it. Absolutely nothing appears on google and looking at my "Hand" Class, i can not see anything that should be causing an issue... :(

Have you tried adding the -Xlint:unchecked property when compiling the program to see a detailed explanation of the warning? — Luiggi Mendoza
– Luiggi Mendoza, Commented Nov 15, 2012 at 17:33

assylias · Accepted Answer · 2012-11-15 17:39:59Z

2

In Netbeans, right click on your project > Properties > Compiling > "Additional Compiler Options" and enter: -Xlint:unchecked.

Recompile and see what line is generating the warning.

answered Nov 15, 2012 at 17:39

assylias

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Dan D. · Accepted Answer · 2012-11-15 17:35:30Z

0

These are not compilation errors, they are some warnings. They say that you are not using generics or using them in a wrong way somewhere in your code.

For instance, something like this:

List list = new ArrayList();

should be:

List<String> list = new ArrayList<String>();

answered Nov 15, 2012 at 17:35

Dan D.

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1 Comment

Luiggi Mendoza Over a year ago

Or type casting using generics: List<String> lstString = (List<String>)object;. Since OP hasn't post any code, it would be better for him/her to add the -Xlint:unchecked property when compiling the project.

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