Java的默认编码

摘要：　　　　　　1.Java的默认编码内容：

1.Java的默认编码　

java的src.zip包中的java.nio.charset.Charset类中defaultCharset()方法说明java的编码类型是有jvm的file.encoding参数决定的，如果未指定默认是UTF-8

/** * Returns the default charset of this Java virtual machine. * * <p> The default charset is determined during virtual-machine startup and * typically depends upon the locale and charset of the underlying * operating system. * * @return  A charset object for the default charset * * @since 1.5 */public static Charset defaultCharset() {    if (defaultCharset == null) {        synchronized (Charset.class) {            String csn = AccessController.doPrivileged(                new GetPropertyAction("file.encoding"));            Charset cs = lookup(csn);            if (cs != null)                defaultCharset = cs;            else                defaultCharset = forName("UTF-8");        }    }    return defaultCharset;}