{"id":3004,"date":"2022-07-08T11:25:57","date_gmt":"2022-07-08T11:25:57","guid":{"rendered":"http:\/\/the-codest.localhost\/blog\/9-mistakes-to-avoid-while-programming-in-java\/"},"modified":"2026-03-09T13:13:14","modified_gmt":"2026-03-09T13:13:14","slug":"9-misstag-att-undvika-nar-du-programmerar-i-java","status":"publish","type":"post","link":"https:\/\/thecodest.co\/sv\/blog\/9-mistakes-to-avoid-while-programming-in-java\/","title":{"rendered":"9 misstag att undvika n\u00e4r du programmerar i Java"},"content":{"rendered":"

Java<\/a><\/strong> \u00e4r ett popul\u00e4rt spr\u00e5k med en etablerad st\u00e4llning i v\u00e4rlden av Utveckling av programvara<\/a><\/strong>. Det \u00e4r ett starkt och m\u00e5ngsidigt programmeringsspr\u00e5k. Cirka 3 miljarder enheter v\u00e4rlden \u00f6ver k\u00f6rs p\u00e5 Java<\/strong> och d\u00e4rf\u00f6r gjordes minst 3 miljarder misstag n\u00e4r man anv\u00e4nde den. I den h\u00e4r artikeln fokuserar vi p\u00e5 hur man inte g\u00f6r n\u00e5gra fler.<\/p>\n\n\n\n

1. F\u00e5 undantag f\u00f6r samtidig modifiering<\/h2>\n\n\n\n

Det h\u00e4r \u00e4r det absolut vanligaste misstaget jag har st\u00f6tt p\u00e5. I b\u00f6rjan av min karri\u00e4r gjorde jag det m\u00e5nga g\u00e5nger ocks\u00e5. Detta misstag uppst\u00e5r n\u00e4r du f\u00f6rs\u00f6ker modifiera samlingen medan du itererar genom den. Den ConcurrentModificationException<\/code> kan ocks\u00e5 uppst\u00e5 n\u00e4r du arbetar med flera tr\u00e5dar, men f\u00f6r tillf\u00e4llet fokuserar vi p\u00e5 ett basscenario.<\/p>\n\n\n\n

Anta att du har en Samling<\/code> av anv\u00e4ndare d\u00e4r vissa av dem \u00e4r vuxna och andra inte. Din uppgift \u00e4r att filtrera bort barnen.<\/p>\n\n\n\n

f\u00f6r (anv\u00e4ndare : anv\u00e4ndare) {\n\n   if (!user.isAdult()) {\n\n       users.remove(anv\u00e4ndare);\n\n   }\n\n}\n<\/code><\/pre>\n\n\n\n
K\u00f6rning av den tidigare n\u00e4mnda kod<\/a> slutar med att f\u00e5 ConcurrentModificationException<\/code>. Var gick vi fel? Innan vi avslutade v\u00e5r iteration f\u00f6rs\u00f6kte vi ta bort n\u00e5gra element. Det \u00e4r det som utl\u00f6ser undantaget.<\/p>\n\n\n\n
Hur kan jag undvika det?<\/h3>\n\n\n\n
Det finns ett par tillv\u00e4gag\u00e5ngss\u00e4tt som kan hj\u00e4lpa till i det fallet. F\u00f6rst och fr\u00e4mst, dra nytta av Java<\/strong> 8:ans godhet - Str\u00f6m<\/code>.<\/p>\n\n\n\n
List vuxna = anv\u00e4ndare.stream()\n\n       .filter(Anv\u00e4ndare::isAdult)\n\n       .toList();\n<\/code><\/pre>\n\n\n\n
Anv\u00e4nda en Predikat<\/code> filter har vi gjort det omv\u00e4nda av det tidigare villkoret - nu best\u00e4mmer vi vilka element som ska inkluderas. F\u00f6rdelen med ett s\u00e5dant tillv\u00e4gag\u00e5ngss\u00e4tt \u00e4r att det \u00e4r l\u00e4tt att kedja andra funktioner efter borttagningen, t.ex. karta<\/code>. Men f\u00f6r guds skull, f\u00f6rs\u00f6k inte att g\u00f6ra n\u00e5got liknande som nedan:<\/p>\n\n\n\n
anv\u00e4ndare.str\u00f6m()\n\n       .filter(v -> !v.isAdult())\n\n       .forEach(anv\u00e4ndare::remove);\n<\/code><\/pre>\n\n\n\n
Den kan ocks\u00e5 hamna i ConcurrentModificationException<\/code> eftersom du \u00e4ndrar str\u00f6mk\u00e4llan. Det kan ocks\u00e5 ge dig n\u00e5gra fler undantag som inte kommer att vara l\u00e4tta att fels\u00f6ka.<\/p>\n\n\n\n
F\u00f6r att l\u00f6sa ConcurrentModificationException<\/code> i ett scenario med en enda tr\u00e5d. Du kan ocks\u00e5 byta till att anv\u00e4nda direkt Iterator<\/code> och dess ta bort()<\/code> metoden, eller s\u00e5 kan du helt enkelt inte ta bort element under iterationen. Min rekommendation \u00e4r dock att anv\u00e4nda Str\u00f6mmar<\/code> - det \u00e4r 2022.<\/p>\n\n\n\n
2. Lagra l\u00f6senord som str\u00e4ngar<\/h2>\n\n\n\n
Eftersom jag blir mer och mer involverad i cybers\u00e4kerhet skulle jag inte vara sann mot mig sj\u00e4lv om jag inte n\u00e4mnde minst en Java-misstag<\/strong> som kan leda till ett s\u00e4kerhetsproblem. Att lagra l\u00f6senord som tas emot fr\u00e5n anv\u00e4ndare i en Str\u00e4ng<\/code> objekt \u00e4r precis n\u00e5got du borde vara r\u00e4dd f\u00f6r.<\/p>\n\n\n\n
Problemet (eller kanske f\u00f6rdelen) med Str\u00e4ng<\/code> \u00e4r att det \u00e4r of\u00f6r\u00e4nderligt. I en cyberv\u00e4rld utg\u00f6r detta ett potentiellt hot eftersom det inte g\u00e5r att \u00e5terst\u00e4lla v\u00e4rdet p\u00e5 en en g\u00e5ng skapad Str\u00e4ng<\/code> objekt. En angripare som f\u00e5r tillg\u00e5ng till din dators minne kan hitta l\u00f6senord i klartext d\u00e4r.<\/p>\n\n\n\n
F\u00f6r det andra, str\u00e4ngar i Java<\/strong> internaliseras av JVM och lagras i PermGen-utrymmet eller i heap-utrymmet. N\u00e4r du skapar en Str\u00e4ng<\/code> objektet, cachas det och tas bort f\u00f6rst n\u00e4r Garbage Collector b\u00f6rjar g\u00f6ra sitt jobb. Du kan inte vara s\u00e4ker p\u00e5 n\u00e4r ditt l\u00f6senord tas bort fr\u00e5n String-poolen eftersom Garbage Collector arbetar p\u00e5 ett icke-deterministiskt s\u00e4tt.<\/p>\n\n\n\n
Hur undviker man det?<\/h3>\n\n\n\n
Det rekommenderade tillv\u00e4gag\u00e5ngss\u00e4ttet \u00e4r att anv\u00e4nda char[]<\/code> eller, \u00e4nnu b\u00e4ttre, ett bibliotek som st\u00f6der lagring av l\u00f6senord som char[]<\/code>, t.ex.L\u00f6senord4j<\/a>. Den char[]<\/code> array \u00e4r f\u00f6r\u00e4nderlig och kan \u00e4ndras efter att den har initialiserats. N\u00e4r du har bearbetat ett l\u00f6senord kan du bara radera char[]<\/code> l\u00f6senordsarray genom att skriva slumpm\u00e4ssiga tecken i den. Om angriparna f\u00e5r tillg\u00e5ng till din dators minne kommer de bara att se n\u00e5gra slumpm\u00e4ssiga v\u00e4rden som inte har n\u00e5got att g\u00f6ra med anv\u00e4ndarnas l\u00f6senord.<\/p>\n\n\n\n
3. (O)hantering av undantag<\/h2>\n\n\n\n
Nyb\u00f6rjare och \u00e4ven mer avancerade programmerare vet inte hur man hanterar undantag p\u00e5 r\u00e4tt s\u00e4tt. Deras st\u00f6rsta synd i den fr\u00e5gan \u00e4r att bara ignorera dem. DET \u00c4R ALDRIG ETT BRA TILLV\u00c4GAG\u00c5NGSS\u00c4TT.<\/p>\n\n\n\n
Tyv\u00e4rr kan vi inte ge dig en universall\u00f6sning som passar in i varje Undantag<\/code>s-scenario som du st\u00f6ter p\u00e5. Du m\u00e5ste t\u00e4nka p\u00e5 varje fall separat. Vi kan dock ge dig n\u00e5gra r\u00e5d om hur du kan komma ig\u00e5ng med det \u00e4mnet.<\/p>\n\n\n\n
Hur kan jag undvika det?<\/h3>\n\n\n\n
    \n
  1. \n
    Ignorering Undantag<\/code>\u00e4r aldrig en bra metod. Undantag<\/code>s \u00e4r inlagda av n\u00e5gon anledning, s\u00e5 du b\u00f6r inte ignorera dem.<\/p>\n<\/li>\n\n\n\n
  2. \n
    try {...} catch(Undantag e) { log(e); }<\/code> \u00e4r s\u00e4llan den r\u00e4tta metoden f\u00f6r att Undantag<\/code> hantering.<\/p>\n<\/li>\n\n\n\n
  3. \n
    Nedkastning Undantag<\/code>, visa en feldialog f\u00f6r anv\u00e4ndaren eller \u00e5tminstone l\u00e4gga till ett omfattande meddelande i loggen.<\/p>\n<\/li>\n\n\n\n
  4. \n
    Om du l\u00e4mnade dina undantag obehandlade (vilket du inte borde), f\u00f6rklara \u00e5tminstone dig sj\u00e4lv i kommentaren.<\/p>\n<\/li>\n<\/ol>\n\n\n\n
    4. Anv\u00e4nda noll<\/h2>\n\n\n\n
    Tyv\u00e4rr \u00e4r det ganska vanligt att hitta en Java-funktion som i vissa fall returnerar en noll<\/code>. Problemet \u00e4r att en s\u00e5dan funktion tvingar sin klient att utf\u00f6ra en null-kontroll p\u00e5 resultatet. Utan detta kommer NullPointerException<\/code> kastas.<\/p>\n\n\n\n
    Den andra saken \u00e4r att skicka en noll<\/code> ...v\u00e4rde. Varf\u00f6r t\u00e4nkte du ens p\u00e5 det? I ett s\u00e5dant fall m\u00e5ste funktionen utf\u00f6ra en null-kontroll. N\u00e4r du anv\u00e4nder tredjepartsbibliotek kan du inte \u00e4ndra funktionernas insida. Vad g\u00f6r man d\u00e5?<\/p>\n\n\n\n
    \u00c4nnu viktigare \u00e4r att andra utvecklare som l\u00e4ser din kod och ser att du klarar noll<\/code> kommer f\u00f6rmodligen att bli f\u00f6rvirrade \u00f6ver varf\u00f6r du v\u00e4ljer ett s\u00e5 bisarrt s\u00e4tt att implementera din funktion.<\/p>\n\n\n\n
    Hur kan jag undvika det?<\/h3>\n\n\n\n
    Returnera inte ett noll<\/code> v\u00e4rde! Aldrig n\u00e5gonsin! Om din funktion returnerar n\u00e5gon typ av Samling<\/code>kan du bara returnera en tom Samling<\/code>. Om du hanterar enstaka objekt kan du anv\u00e4nda designm\u00f6nstret null object. Sedan Java<\/strong> 8, \u00e4r den implementerad som Valfritt<\/code>. I \u00f6vrigt \u00e4r det minst rekommenderade tillv\u00e4gag\u00e5ngss\u00e4ttet att v\u00e4cka en Undantag<\/code>.<\/p>\n\n\n\n
    5. Tung str\u00e4ngkonkatenering<\/h2>\n\n\n\n
    F\u00f6rhoppningsvis \u00e4r det inte ett misstag du g\u00f6r, eftersom det \u00e4r den mest popul\u00e4ra (eller kanske n\u00e4st mest popul\u00e4ra efter FizzBuzz) intervjufr\u00e5gan. Som du borde veta vid det h\u00e4r laget \u00e4r en Str\u00e4ng<\/code> objektet \u00e4r of\u00f6r\u00e4nderligt i Java<\/strong> - N\u00e4r den v\u00e4l har skapats kan den inte \u00e4ndras. S\u00e5 konkatenering av Str\u00e4ng<\/code> literaler inneb\u00e4r en hel del on\u00f6dig minnesallokering. Konkatenering Str\u00e4ng<\/code> objekt varje g\u00e5ng kr\u00e4ver att man skapar en tillf\u00e4llig StringBuilder<\/code> objekt och \u00e4ndra tillbaka det till en str\u00e4ng. D\u00e4rf\u00f6r \u00e4r den h\u00e4r l\u00f6sningen absolut inte l\u00e4mplig om vi vill kombinera ett stort antal tecken.<\/p>\n\n\n\n
    Hur kan jag undvika det?<\/h3>\n\n\n\n
    F\u00f6r att l\u00f6sa det problemet anv\u00e4nder du StringBuilder<\/code>. Det skapar ett f\u00f6r\u00e4nderligt objekt som l\u00e4tt kan manipuleras. Naturligtvis kan du alltid anv\u00e4nda StringBuffer<\/code> om din projekt<\/a> anv\u00e4nds i ett samtidigt sammanhang.<\/p>\n\n\n\n
    6. Att inte anv\u00e4nda befintliga l\u00f6sningar<\/h2>\n\n\n\n
    N\u00e4r man utvecklar programvara \u00e4r det ett m\u00e5ste att l\u00e4ra sig grunderna i det spr\u00e5k man skriver p\u00e5, men det r\u00e4cker inte. M\u00e5nga algoritmiska problem som du st\u00f6ter p\u00e5 n\u00e4r du implementerar en ny funktion har redan l\u00f6sts av n\u00e5gon annan. Alltf\u00f6r m\u00e5nga g\u00e5nger har jag sett n\u00e5gon implementera en s\u00e4kerhetsalgoritm fr\u00e5n grunden. Ett s\u00e5dant tillv\u00e4gag\u00e5ngss\u00e4tt \u00e4r felben\u00e4get. En person kan inte testa en s\u00e5dan komplex l\u00f6sning grundligt. Den kollektiva kunskapen hos Team<\/a> som best\u00e5r av medelavancerade programmerare \u00e4r n\u00e4stan alltid b\u00e4ttre \u00e4n storheten hos ett underbarn Java-utvecklare<\/a><\/strong>. Du beh\u00f6ver inte uppfinna hjulet p\u00e5 nytt - du beh\u00f6ver bara anpassa den befintliga l\u00f6sningen s\u00e5 att den passar dina behov.<\/p>\n\n\n\n
    Hur kan jag undvika det?<\/h3>\n\n\n\n
    F\u00f6rs\u00f6k att s\u00f6ka efter bibliotek som tar upp det problem du arbetar med. F\u00f6rs\u00f6k att hitta liknande l\u00f6sningar. M\u00e5nga av de bibliotek som finns tillg\u00e4ngliga p\u00e5 webb<\/a> \u00e4r gratis och har finslipats och testats av erfarna utvecklare och hela Java-communityn. Var inte r\u00e4dd f\u00f6r att anv\u00e4nda dem.<\/p>\n\n\n\n
    7. Inte tillr\u00e4ckligt med tid f\u00f6r att skriva tester<\/h2>\n\n\n\n
    Det \u00e4r frestande att tro att v\u00e5r kod alltid kommer att fungera perfekt. Att inte skriva tester f\u00f6r kod \u00e4r den v\u00e4rsta synden av alla Java Programvaruutvecklare<\/a><\/strong>. M\u00e5nga av oss<\/a> f\u00f6redrar manuella och utforskande tester ist\u00e4llet f\u00f6r enhetstester, vilket \u00e4r helt galet.  Varf\u00f6r sl\u00f6sa tid p\u00e5 att skriva tester n\u00e4r du kan fokusera p\u00e5 att tillhandah\u00e5lla v\u00e4rldens b\u00e4sta kod f\u00f6r ditt projekt, som DEFINITIVT inte har n\u00e5gra buggar? Det visar sig att verkligheten \u00e4r brutal och att vi inte kan tillhandah\u00e5lla h\u00f6gkvalitativ kod utan att skriva tester.<\/p>\n\n\n\n
    Hur kan jag undvika det?<\/h3>\n\n\n\n
    Du b\u00f6r alltid f\u00f6rbereda tester f\u00f6r din kod. Jag vet att TDD-metoden inte \u00e4r s\u00e5 l\u00e4tt att underh\u00e5lla, men du b\u00f6r \u00e5tminstone tillhandah\u00e5lla tester som t\u00e4cker alla f\u00f6rh\u00e5llanden under vilka din kod kan k\u00f6ras. Detta inkluderar testning av exceptionella situationer. Enhetstesterna \u00e4r n\u00f6dv\u00e4ndiga. Du m\u00e5ste tillhandah\u00e5lla dem f\u00f6r varje funktion i ditt projekt om du vill se till att din kod \u00e4r l\u00e4tt att refaktorisera och ut\u00f6ka i vidareutveckling. <\/p>\n\n\n\n
    En sak till. H\u00e5ll en h\u00f6g standard p\u00e5 din testkod - det kommer att vara v\u00e4rt det. Det \u00e4r farbror Bobs r\u00e5d och jag h\u00e5ller helt med om det.<\/p>\n\n\n\n
    Dessutom f\u00e5r du inte gl\u00f6mma bort andra typer av tester. Integrationstester \u00e4r n\u00e5got du b\u00f6r t\u00e4nka p\u00e5 i alla dina projekt.<\/p>\n\n\n\n
    8. Att gl\u00f6mma bort accessmodifierare<\/h2>\n\n\n\n
    Privat och offentligt, eller hur? Hur kan vi gl\u00f6mma bort dem. Det visar sig att det finns fler. N\u00e4r du f\u00f6rst b\u00f6rjade l\u00e4ra dig Java<\/strong>har du definitivt l\u00e4rt dig om modifierare f\u00f6r skyddad \u00e5tkomst. De kan vara anv\u00e4ndbara i vissa fall, s\u00e5 det \u00e4r v\u00e4rt att k\u00e4nna till deras existens.<\/p>\n\n\n\n
    Java-utvecklare<\/a><\/strong> verkar ofta gl\u00f6mma bort paketets omfattning. Det \u00e4r l\u00e4tt att inte komma ih\u00e5g att anv\u00e4nda det eftersom det \u00e4r implicit och inte kr\u00e4ver n\u00e5gon Java<\/strong> nyckelord. Paketets omfattning \u00e4r viktig. Det g\u00f6r att du kan testa en skyddad metod. Skyddade objekt \u00e4r tillg\u00e4ngliga fr\u00e5n testklassens s\u00f6kv\u00e4g, s\u00e5 l\u00e4nge som paketet \u00e4r detsamma.<\/p>\n\n\n\n
    Hur kan jag undvika det?<\/h3>\n\n\n\n
    Kom ih\u00e5g den skyddade modifieraren och att paketets omfattning g\u00f6r att du kan testa den.<\/p>\n\n\n\n
    9. Anv\u00e4nda ren JavaEE ist\u00e4llet f\u00f6r Spring<\/h2>\n\n\n\n
    N\u00e4sta steg efter inl\u00e4rning Java<\/strong> SE ska l\u00e4ra sig hur man k\u00f6r Java<\/strong> p\u00e5 servrar, hur man skapar en applikation p\u00e5 f\u00f6retagsniv\u00e5.<\/p>\n\n\n\n
    Nyb\u00f6rjare g\u00e5r ofta i f\u00e4llan att l\u00e4ra sig JavaEE eftersom det finns ett stort antal handledningar om det. Till och med \"Thinking in Java\", den Java-programmerare<\/strong>' n\u00e4mner JavaEE och s\u00e4ger ingenting om de andra alternativen.<\/p>\n\n\n\n
    Hur kan jag undvika det?<\/h3>\n\n\n\n
    JavaEE \u00e4r en s\u00e5ng fr\u00e5n det f\u00f6rflutna. Numera \u00e4r Spring en sj\u00e4lvklarhet och Java EE \u00e4r bara trevligt att ha. Varje modern applikation p\u00e5 f\u00f6retagsniv\u00e5 anv\u00e4nder Spring, s\u00e5 du b\u00f6r starkt \u00f6verv\u00e4ga att l\u00e4ra dig den h\u00e4r<\/a>.<\/p>\n\n\n\n
    \"Tr\u00e4ffa<\/a><\/figure>\n\n\n\n
    L\u00e4s mer om detta:<\/strong><\/p>\n\n\n\n
    R\u00e4tt s\u00e4tt att hitta de b\u00e4sta Java-utvecklarna<\/a><\/p>\n\n\n\n
    Den b\u00e4sta typen av projekt f\u00f6r Java<\/a><\/p>\n\n\n\n
    De b\u00e4sta programmeringsspr\u00e5ken f\u00f6r Fintech-f\u00f6retag<\/a><\/p>","protected":false},"excerpt":{"rendered":"
    Vilka misstag b\u00f6r man undvika n\u00e4r man programmerar i Java? I f\u00f6ljande stycke besvarar vi denna fr\u00e5ga.<\/p>","protected":false},"author":2,"featured_media":3005,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[15,8],"tags":[],"class_list":["post-3004","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-fintech","category-software-development"],"acf":[],"yoast_head":"\n9 Mistakes to Avoid While Programming in Java - The Codest<\/title>\n<meta name=\"description\" content=\"Explore 9 Java coding mistakes developers should avoid to improve code quality, security, and performance in modern Java applications.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/thecodest.co\/sv\/blogg\/9-misstag-att-undvika-nar-du-programmerar-i-java\/\" \/>\n<meta property=\"og:locale\" content=\"sv_SE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"9 Mistakes to Avoid While Programming in Java\" \/>\n<meta property=\"og:description\" content=\"Explore 9 Java coding mistakes developers should avoid to improve code quality, security, and performance in modern Java applications.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/thecodest.co\/sv\/blogg\/9-misstag-att-undvika-nar-du-programmerar-i-java\/\" \/>\n<meta property=\"og:site_name\" content=\"The Codest\" \/>\n<meta property=\"article:published_time\" content=\"2022-07-08T11:25:57+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-03-09T13:13:14+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/thecodest.co\/app\/uploads\/2024\/05\/9_mistakes_to_avoid_while_programming_in_java.png\" \/>\n\t<meta property=\"og:image:width\" content=\"960\" \/>\n\t<meta property=\"og:image:height\" content=\"540\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"thecodest\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"thecodest\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"8 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/thecodest.co\\\/blog\\\/9-mistakes-to-avoid-while-programming-in-java\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/thecodest.co\\\/blog\\\/9-mistakes-to-avoid-while-programming-in-java\\\/\"},\"author\":{\"name\":\"thecodest\",\"@id\":\"https:\\\/\\\/thecodest.co\\\/#\\\/schema\\\/person\\\/7e3fe41dfa4f4e41a7baad4c6e0d4f76\"},\"headline\":\"9 Mistakes to Avoid While Programming in Java\",\"datePublished\":\"2022-07-08T11:25:57+00:00\",\"dateModified\":\"2026-03-09T13:13:14+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/thecodest.co\\\/blog\\\/9-mistakes-to-avoid-while-programming-in-java\\\/\"},\"wordCount\":1643,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/thecodest.co\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/thecodest.co\\\/blog\\\/9-mistakes-to-avoid-while-programming-in-java\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/thecodest.co\\\/app\\\/uploads\\\/2024\\\/05\\\/9_mistakes_to_avoid_while_programming_in_java.png\",\"articleSection\":[\"Fintech\",\"Software Development\"],\"inLanguage\":\"sv-SE\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/thecodest.co\\\/blog\\\/9-mistakes-to-avoid-while-programming-in-java\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/thecodest.co\\\/blog\\\/9-mistakes-to-avoid-while-programming-in-java\\\/\",\"url\":\"https:\\\/\\\/thecodest.co\\\/blog\\\/9-mistakes-to-avoid-while-programming-in-java\\\/\",\"name\":\"9 Mistakes to Avoid While Programming in Java - 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