Karl Mutch karlmutch
🇳🇿
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| var ( | |
| Web = fakeSearch("web") | |
| Image = fakeSearch("image") | |
| Video = fakeSearch("video") | |
| ) | |
| type Search func(query string) Result | |
| func fakeSearch(kind string) Search { | |
| return func(query string) Result { |
karlmutch
/ GoFunctionAdapters
Last active
August 29, 2015 14:24
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| func init() { | |
| http.HandleFunc("/", errorHandler(betterHandler)) | |
| } | |
| func errorHandler(f func(http.ResponseWriter, *http.Request) error) http.HandlerFunc { | |
| return func(w http.ResponseWriter, r *http.Request) { | |
| err := f(w, r) | |
| if err != nil { | |
| http.Error(w, err.Error(), http.StatusInternalServerError) | |
| log.Printf("handling %q: %v", r.RequestURI, err) |
karlmutch
/ gist:6cf4e1b864e750ff97be
Created
June 3, 2015 18:29
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| Using Java, with no help from 3rd party libraries, there is the old way and the new way. Just sorting used to be easy with Collections.sort(..). | |
| The challenge with the old way was that a lot of code was required to group the values. | |
| - Input: List<String> | |
| - Output: Map<Character,<List<String>> | |
| - The key of map is 'A' to 'Z' | |
| - Each list in the map are sorted. | |
| Old Java |
karlmutch
/ gist:221e705051bb56e4cad0
Created
May 2, 2015 19:03
This problem comes from a Google+ group and was described as * * You have an array of integers, and for each index you want to find the product of every integer except * the integer at that index. Write a function get_products_of_all_ints_except_at_index() that takes an * array of integers and returns an array of the products.
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| public static BigInteger [] get_products_of_all_ints_except_at_index(BigInteger [] input) | |
| { | |
| ArrayList<BigInteger> productResults = new ArrayList<BigInteger>(input.length); | |
| BigInteger masterProduct = BigInteger.ONE; | |
| for (BigInteger anItem : input) { | |
| masterProduct = masterProduct.multiply(anItem); | |
| } | |
| for (BigInteger anItem : input) { |
karlmutch
/ Linux dev Bootstrap for CentOS 7 and GGC 4.9.2
Created
April 1, 2015 22:07
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| 36 wget --no-cookies --no-check-certificate --header "Cookie: gpw_e24=http%3A%2F%2Fwww.oracle.com%2F; oraclelicense=accept-securebackup-cookie" http://download.oracle.com/otn-pub/java/jdk/8u40-b26/jdk-8u40-linux-x64.tar.gz | |
| 37 javac | |
| 38 tar xvfo jdk-8u40-linux-x64.tar.gz | |
| 39 chown -R root: jdk1.8.0_40 | |
| 40 sudo alternatives --install /usr/bin/java java /opt/jdk1.8.0_40/bin/java 1 | |
| 41 sudo alternatives --install /usr/bin/javac javac /opt/jdk1.8.0_40/bin/javac 1 | |
| 42 sudo alternatives --install /usr/bin/jar jar /opt/jdk1.8.0_40/bin/jar 1 | |
| 43 ls | |
| 44 rm jdk | |
| 45 rm jdk-8u40-linux-x64.tar.gz |
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