What is the way to verify beforehand if a function works for any version of java jre? -

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i'm relatively new using java , tried of codes in other computers (with different versions of jre or jdk) ...for example, i've been trying know if function .newline() works jre1.6 ...but can't find it

writer = new bufferedwriter(new outputstreamwriter(                 new fileoutputstream(directorio523+"tabla1.txt"), "utf-8")); writer.write("something"); writer.newline();

so, there web wich identify or command linux put?

check the class's javadoc. in case, class noted being present "since jdk1.1", , method doesn't have more specific date, since java 1.1 should support it.


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