{"id":2783,"date":"2019-11-03T21:24:32","date_gmt":"2019-11-03T20:24:32","guid":{"rendered":"http:\/\/www.webotlet.hu\/?p=2783"},"modified":"2020-01-13T11:01:35","modified_gmt":"2020-01-13T10:01:35","slug":"java-programozas-2013-majusi-emelt-informatika-erettsegi-programozasi-feladatanak-megoldasa-2-verzio","status":"publish","type":"post","link":"https:\/\/www.webotlet.hu\/?p=2783","title":{"rendered":"Java programoz\u00e1s – 2013 m\u00e1jusi emelt informatika \u00e9retts\u00e9gi programoz\u00e1si feladat\u00e1nak megold\u00e1sa (2. verzi\u00f3)"},"content":{"rendered":"

A feladat le\u00edr\u00e1s\u00e1t, melynek a megold\u00e1s\u00e1t k\u00f6zz\u00e9teszem innen<\/a> t\u00f6ltheted le. Ez a megold\u00e1s list\u00e1val dolgozik, haszn\u00e1lok benne HashSet-et, foreach ciklust (ahol lehet), \u00e9s OO szeml\u00e9letb\u0151l kicsit t\u00f6bb tal\u00e1lhat\u00f3 benne.<\/p>\n

Adatt\u00e1rol\u00f3 oszt\u00e1ly:<\/p>\n

\r\n\/**\r\n *\r\n * @author https:\/\/webotlet.hu\r\n *\/\r\npackage webotlet_13maj_valasztasok_v2;\r\n\r\npublic class Jelolt\r\n{\r\n  private int kerulet;\r\n  private int szavazatok;\r\n  private String nev;\r\n  private String part;\r\n  \r\n  public Jelolt( String[] tomb )\r\n  {\r\n    kerulet = Integer.parseInt(tomb[0]);\r\n    szavazatok = Integer.parseInt(tomb[1]);\r\n    nev = tomb[2] + " " + tomb[3];\r\n    part = tomb[4];\r\n    if( part.equals("-"))\r\n    {\r\n      part = "fuggetlen";\r\n    }\r\n  }\r\n\r\n  public int getKerulet()\r\n  {\r\n    return kerulet;\r\n  }\r\n\r\n  public int getSzavazatok()\r\n  {\r\n    return szavazatok;\r\n  }\r\n\r\n  public String getNev()\r\n  {\r\n    return nev;\r\n  }\r\n\r\n  public String getPart()\r\n  {\r\n    return part;\r\n  }\r\n\r\n  @Override\r\n  public String toString()\r\n  {\r\n    return "Jelolt{" + "kerulet=" + kerulet \r\n      + ", szavazatok=" + szavazatok + ", nev="\r\n      + nev + ", part=" + part + '}';\r\n  }\r\n}\r\n<\/pre>\n
P\u00e1rt oszt\u00e1ly (egy konkr\u00e9t feladathoz):<\/p>\n
\r\n\/**\r\n *\r\n * @author https:\/\/webotlet.hu\r\n *\/\r\npackage webotlet_13maj_valasztasok_v2;\r\n\r\nimport java.util.ArrayList;\r\n\r\npublic class Part\r\n{\r\n  private String nev;\r\n  private String rovid;\r\n  private ArrayList<Jelolt> jeloltek;\r\n  private int osszSzavazat;\r\n  \r\n  public Part( String nev, String rovid )\r\n  {\r\n    this.nev = nev;\r\n    this.rovid = rovid;\r\n    jeloltek = new ArrayList<>();\r\n    osszSzavazat = 0;\r\n  }\r\n\r\n  public String getNev()\r\n  {\r\n    return nev;\r\n  }\r\n\r\n  public String getRovid()\r\n  {\r\n    return rovid;\r\n  }\r\n\r\n  public ArrayList<Jelolt> getJeloltek()\r\n  {\r\n    return jeloltek;\r\n  }\r\n\r\n  public int getOsszSzavazat()\r\n  {\r\n    return osszSzavazat;\r\n  }\r\n\r\n  @Override\r\n  public String toString()\r\n  {\r\n    return "Part{" + "nev=" + nev + ", rovid="\r\n      + rovid + ", jeloltek=" + jeloltek + '}';\r\n  }\r\n\r\n  public void addJelolt(Jelolt jelolt)\r\n  {\r\n    jeloltek.add(jelolt);\r\n    osszSzavazat += jelolt.getSzavazatok();\r\n  }\r\n}\r\n<\/pre>\n
A feladat megold\u00e1sai:<\/p>\n
\r\n\/**\r\n *\r\n * @author https:\/\/webotlet.hu\r\n *\/\r\npackage webotlet_13maj_valasztasok_v2;\r\n\r\nimport java.io.IOException;\r\nimport java.io.RandomAccessFile;\r\nimport java.util.ArrayList;\r\nimport java.util.HashMap;\r\nimport java.util.Scanner;\r\n\r\npublic class webotlet_13maj_valasztasok_v2\r\n{\r\n  public static void main(String[] args)\r\n  {\r\n    System.out.println("1. feladat");\r\n    ArrayList<Jelolt> jeloltek = new ArrayList<>();\r\n    \r\n    try\r\n    {\r\n      RandomAccessFile raf = new RandomAccessFile("szavazatok.txt","r");\r\n      String sor;\r\n      for( sor = raf.readLine(); sor != null; sor = raf.readLine() )\r\n      {\r\n        jeloltek.add(new Jelolt(sor.split(" ")));\r\n      }\r\n      raf.close();\r\n    }\r\n    catch( IOException e )\r\n    {\r\n      System.out.println("HIBA");\r\n    }\r\n    \r\n\/\/    for( int i = 0; i < jeloltek.length; i++ )\r\n\/\/    {\r\n\/\/      System.out.println(jeloltek[i].toString());\r\n\/\/    }\r\n    System.out.println("2. feladat");\r\n    System.out.println("A helyhatosagi valasztason " \r\n      + jeloltek.size() + " kepviselojelolt indult.");\r\n    \r\n    System.out.println("3. feladat");\r\n    Scanner sc = new Scanner(System.in);\r\n    System.out.println("Adja meg egy jelolt nevet:");\r\n    String nev = sc.nextLine();\r\n    boolean vanNev = false;\r\n    \r\n    for( Jelolt jelolt : jeloltek )\r\n    {\r\n      if( jelolt.getNev().equals(nev))\r\n      {\r\n        System.out.println("A jelolt " \r\n          + jelolt.getSzavazatok() + " szavazatot kapott.");\r\n        vanNev = true;\r\n        break;\r\n      }\r\n    }\r\n    if( !vanNev )\r\n    {\r\n      System.out.println("Ilyen nevu kepviselojelolt "\r\n        + "nem szerepel a nyilvantartasban!");\r\n    }\r\n        \r\n    System.out.println("4. feladat");\r\n    int osszSzavazat = 0;\r\n    for( Jelolt jelolt : jeloltek)\r\n    {\r\n      osszSzavazat += jelolt.getSzavazatok();\r\n    }\r\n    \r\n    double szazalek = (osszSzavazat \/ (double)12345) * 100;\r\n    System.out.println(String.format("A valasztason %d "\r\n      + "allampolgar, a jogosultak %.2f%%-a vett reszt.",\r\n      osszSzavazat, szazalek));\r\n    \r\n    \r\n    System.out.println("5. feladat");\r\n    \/\/ GYEP, HEP, TISZ, ZEP, fuggetlen\r\n    HashMap<String, Part> partok = new HashMap<>();\r\n    \r\n    partok.put( "GYEP", new Part("Gyumolcsevok Partja","GYEP"));\r\n    partok.put( "HEP", new Part("Husevok Partja","HEP"));\r\n    partok.put( "TISZ", new Part("Tejivok Partja","TISZ"));\r\n    partok.put( "ZEP", new Part("Zoldsegevok Partja","ZEP"));\r\n    partok.put( "fuggetlen", new Part("Fuggetlen jeloltek","fuggetlen"));\r\n    \r\n    for( Jelolt jelolt : jeloltek)\r\n    {\r\n      partok.get(jelolt.getPart()).addJelolt(jelolt);\r\n    }\r\n    \r\n    for( Part part : partok.values())\r\n    {\r\n      szazalek = (part.getOsszSzavazat() \/ (double)osszSzavazat) * 100;\r\n      System.out.println(String.format("%s= %.2f%%", part.getNev(), szazalek));\r\n    }\r\n    \r\n    System.out.println("6. feladat");\r\n    \r\n    int maxSzavazat = jeloltek.get(0).getSzavazatok();\r\n    for( Jelolt jelolt : jeloltek)\r\n    {\r\n      if( jelolt.getSzavazatok() > maxSzavazat )\r\n      {\r\n        maxSzavazat = jelolt.getSzavazatok();\r\n      }\r\n    }\r\n\r\n    for( Jelolt jelolt : jeloltek)\r\n    {\r\n      if( jelolt.getSzavazatok() == maxSzavazat )\r\n      {\r\n        System.out.println( jelolt.getNev() + " " + jelolt.getPart());\r\n      }\r\n    }\r\n\r\n\/\/ 7. feladat\r\n    Jelolt[] nyertesek = new Jelolt[9];\r\n    \r\n    for( Jelolt jelolt : jeloltek)\r\n    {\r\n      if( nyertesek[ jelolt.getKerulet() ] == null ||\r\n          nyertesek[ jelolt.getKerulet() ].getSzavazatok() <\r\n        jelolt.getSzavazatok() )\r\n      {\r\n        nyertesek[ jelolt.getKerulet() ] = jelolt;\r\n      }\r\n    }\r\n\r\n    try\r\n    {\r\n      RandomAccessFile out = new RandomAccessFile("kepviselok.txt", "rw");\r\n\/\/ ha esetleg t\u00f6bbsz\u00f6r hozn\u00e1nk l\u00e9tre a f\u00e1jlt,\r\n\/\/ t\u00f6r\u00f6lj\u00fck az el\u0151z\u0151 tartalm\u00e1t\r\n      out.setLength(0);\r\n      for( int i = 1; i < nyertesek.length; i++ )\r\n      {\r\n        out.writeBytes(i + " " + nyertesek[i].getNev() + " "\r\n          + nyertesek[i].getPart() + "\\n");\r\n      }\r\n      out.close();\r\n    }\r\n    catch( IOException e )\r\n    {\r\n      System.out.println("HIBA");\r\n    }\r\n  }\r\n}\r\n<\/pre>\n
Ha hib\u00e1t tal\u00e1lsz benne, k\u00e9rlek jelezd!<\/p>\n","protected":false},"excerpt":{"rendered":"
A feladat le\u00edr\u00e1s\u00e1t, melynek a megold\u00e1s\u00e1t k\u00f6zz\u00e9teszem innen t\u00f6ltheted le. Ez a megold\u00e1s list\u00e1val dolgozik, haszn\u00e1lok benne HashSet-et, foreach ciklust (ahol lehet), \u00e9s OO szeml\u00e9letb\u0151l kicsit t\u00f6bb tal\u00e1lhat\u00f3 benne. Adatt\u00e1rol\u00f3 oszt\u00e1ly: \/** * * @author https:\/\/webotlet.hu *\/ package webotlet_13maj_valasztasok_v2; public Tov\u00e1bb   Java programoz\u00e1s – 2013 m\u00e1jusi emelt informatika \u00e9retts\u00e9gi programoz\u00e1si feladat\u00e1nak megold\u00e1sa (2. verzi\u00f3)<\/span>→<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[106],"tags":[107,109,86,144],"class_list":["post-2783","post","type-post","status-publish","format-standard","hentry","category-java-emelt-erettsegi-feladatok","tag-emelt-erettsegi","tag-emelt-informatika-erettsegi","tag-java","tag-java_programozas"],"_links":{"self":[{"href":"https:\/\/www.webotlet.hu\/index.php?rest_route=\/wp\/v2\/posts\/2783","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.webotlet.hu\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.webotlet.hu\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.webotlet.hu\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.webotlet.hu\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2783"}],"version-history":[{"count":8,"href":"https:\/\/www.webotlet.hu\/index.php?rest_route=\/wp\/v2\/posts\/2783\/revisions"}],"predecessor-version":[{"id":3093,"href":"https:\/\/www.webotlet.hu\/index.php?rest_route=\/wp\/v2\/posts\/2783\/revisions\/3093"}],"wp:attachment":[{"href":"https:\/\/www.webotlet.hu\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2783"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.webotlet.hu\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2783"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.webotlet.hu\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2783"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}