I’m taking a course in object orientated programming (OOP) at university. I always hated OOP, it seemed like an overly difficult way to doing the stuff I wanted. Now, the course I’m taking is in Java, an old language. It’s even worse than PHP. It’s extremely verbose and lacks even basic high-level functions.<\/p>\n
There is perhaps no simpler way to show this than to compare Hello World programs:<\/p>\n
Java:<\/p>\n
public class javaprogram {\r\n\u00a0\u00a0 \u00a0public static void main(String[] arg) \r\n\u00a0\u00a0 \u00a0{\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0 System.out.println(\"Java sucks\");<\/strong>\r\n\u00a0\u00a0 \u00a0}\r\n}<\/pre>\nI’ve highlighted the extreme verbose print command. Compare with the normal print() or echo() in PHP.<\/p>\n
R\/Python\/Ruby\/others:<\/p>\n
print(\"R is good!\");<\/pre>\nLuckily, one can be tricky and simply begin writing abbreviated functions for these and then load them every time one willingly uses<\/del> is forced to use Java. E.g.:<\/p>\n\/\/reduce desire to an hero\r\npublic static void print(Object string) {\r\n\u00a0\u00a0 System.out.println(string);\r\n}<\/pre>\nAnd so on. One could basically import all the common functions from say Python\/R and make some of the Java go away. :)<\/p>\n
Number sequences<\/strong><\/p>\nAnother example. I wanted to stop using for loops because Java’s are overly verbose and annoying. So I think, no problem, I’ll just switch to the generally smarter foreach loop. All I need is a integer sequence function. In R, this is easy, just “1:5” will generate a list with (1,2,3,4,5). Python has range(5) which gives (0,1,2,3,4). Surely there is a built-in function for such an obvious function right? Right? From Googling it, it appears not<\/a>.<\/p>\nOne good thing<\/strong><\/p>\nReading the book has made me understand the kind of things OOP can be good for, making games where the inheritance stuff is very useful.<\/p>\n","protected":false},"excerpt":{"rendered":"
I’m taking a course in object orientated programming (OOP) at university. I always hated OOP, it seemed like an overly difficult way to doing the stuff I wanted. Now, the course I’m taking is in Java, an old language. It’s even worse than PHP. It’s extremely verbose and lacks even basic high-level functions. There is […]<\/p>\n","protected":false},"author":17,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2089],"tags":[2092,1529],"class_list":["post-4759","post","type-post","status-publish","format-standard","hentry","category-programming","tag-java","tag-suicide","entry"],"_links":{"self":[{"href":"https:\/\/emilkirkegaard.dk\/en\/wp-json\/wp\/v2\/posts\/4759","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/emilkirkegaard.dk\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/emilkirkegaard.dk\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/emilkirkegaard.dk\/en\/wp-json\/wp\/v2\/users\/17"}],"replies":[{"embeddable":true,"href":"https:\/\/emilkirkegaard.dk\/en\/wp-json\/wp\/v2\/comments?post=4759"}],"version-history":[{"count":1,"href":"https:\/\/emilkirkegaard.dk\/en\/wp-json\/wp\/v2\/posts\/4759\/revisions"}],"predecessor-version":[{"id":4760,"href":"https:\/\/emilkirkegaard.dk\/en\/wp-json\/wp\/v2\/posts\/4759\/revisions\/4760"}],"wp:attachment":[{"href":"https:\/\/emilkirkegaard.dk\/en\/wp-json\/wp\/v2\/media?parent=4759"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/emilkirkegaard.dk\/en\/wp-json\/wp\/v2\/categories?post=4759"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/emilkirkegaard.dk\/en\/wp-json\/wp\/v2\/tags?post=4759"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}