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  1. SSN Regex for 123-45-6789 OR XXX-XX-XXXX - Stack Overflow

    Can someone provide me a regex for SSN that matches either 123-45-6789 OR XXX-XX-XXXX I currently have ^\d{3}-?\d{2}-?\d{4}$ which matches the first expression, but I need to add the …

  2. c++ - .c vs .cc vs. .cpp vs .hpp vs .h vs .cxx - Stack Overflow

    Possible Duplicates: *.h or *.hpp for your class definitions What is the difference between .cc and .cpp file suffix? I used to think that it used to be that: .h files are header files for C and C...

  3. What is the difference between -, -X params and -XX params in JVM?

    Some start with -X, such as -Xms, -Xmx. Some start with -XX, such as -XX:PermSize, -XX:UseParallelGC. Since these parameters are not duplicated, why start with so many …

  4. What are the -Xms and -Xmx parameters when starting JVM?

    Feb 7, 2013 · The flag Xmx specifies the maximum memory allocation pool for a Java Virtual Machine (JVM), while Xms specifies the initial memory allocation pool. This means that your …

  5. How to determine the ideal size for an Metaspace for java 8

    Aug 10, 2017 · Then you should probably set a maximum size for the metaspace -XX:MaxMetaspaceSize=<NNN> Metaspace Free Ratio: Do you load many different classes …

  6. How to extract the direct facebook video url - Stack Overflow

    I am trying to extract the url for facebook video file page from the facebook video link but I am not able to proceed how. For example: The facebook video url I have ...

  7. Regular Expression to validate xx-xxxxxxx or xxx-xx-xxxx

    Sep 26, 2014 · string1 = xxx-xx-xxxx or string1 = xx-xxxxxxx How can I make the regex accept both kinds of values for the same element? The x's represent numbers only. so total number …

  8. Decoding facebook's blob video url - Stack Overflow

    Another alternative that worked in Firefox in Feb 2021: Open the post's permalink Change the page's URL - replace www with m and load that Now use Inspector to navigate down to the div …

  9. Setting -XX:+DisableExplicitGC in production: what could go wrong?

    Oct 2, 2015 · You are not alone in fixing stop-the-world GC events by setting the -XX:+DisableExplicitGC flag. Unfortunately (and in spite of the disclaimers in the …

  10. java.lang.IndexOutOfBoundsException: Index: xx, Size: xx

    Mar 4, 2013 · 7 java.lang.IndexOutOfBoundsException: Index: xx, Size: xx A very common Exception. This clearly states that you're trying to access an Index of xx, where the Size of the …