{"id":2823,"date":"2019-11-06T09:21:42","date_gmt":"2019-11-06T08:21:42","guid":{"rendered":"http:\/\/www.webotlet.hu\/?p=2823"},"modified":"2020-01-15T12:44:05","modified_gmt":"2020-01-15T11:44:05","slug":"java-programozas-2006-oktoberi-emelt-informatika-erettsegi-programozasi-feladatanak-megoldasa-2-verzio","status":"publish","type":"post","link":"https:\/\/www.webotlet.hu\/?p=2823","title":{"rendered":"Java programoz\u00e1s – 2006 okt\u00f3beri 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. Ezzel a feladattal viszont t\u00f6bb bajom van, amiket az 1. verzi\u00f3<\/a> megold\u00e1s\u00e1n\u00e1l le\u00edrtam. Ez a megold\u00e1s list\u00e1val dolgozik, sok helyen foreach ciklust haszn\u00e1lok, \u00e9s egy helyen bemutatok egy switch utas\u00edt\u00e1st m\u0171k\u00f6d\u00e9s k\u00f6zben.<\/p>\n

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

\r\n\/**\r\n *\r\n * @author https:\/\/webotlet.hu\r\n *\/\r\npackage webotlet_06okt_zenei_adok_java_v2;\r\n\r\npublic class Zene\r\n{\r\n  private int radio;\r\n  private int perc;\r\n  private int mperc;\r\n  private String azonosito;\r\n  private String eloado;\r\n  private String cim;\r\n  \r\n  \r\n  private int hosszMp;\r\n  private int kezd;\r\n  private int vege;\r\n  \r\n  public Zene( String[] tomb )\r\n  {\r\n    radio = Integer.parseInt(tomb[0]);\r\n    perc = Integer.parseInt(tomb[1]);\r\n    mperc = Integer.parseInt(tomb[2]);\r\n    azonosito = tomb[3];\r\n    String[] tmp = azonosito.split(":");\r\n    eloado = tmp[0];\r\n    cim = tmp[1];\r\n    \r\n    hosszMp = perc * 60 + mperc;\r\n  }\r\n\r\n  public int getRadio()\r\n  {\r\n    return radio;\r\n  }\r\n\r\n  public int getPerc()\r\n  {\r\n    return perc;\r\n  }\r\n\r\n  public int getMperc()\r\n  {\r\n    return mperc;\r\n  }\r\n\r\n  public String getAzonosito()\r\n  {\r\n    return azonosito;\r\n  }\r\n  \r\n  public String getEloado()\r\n  {\r\n    return eloado;\r\n  }\r\n\r\n  public String getCim()\r\n  {\r\n    return cim;\r\n  }\r\n\r\n  public int getHosszMp()\r\n  {\r\n    return hosszMp;\r\n  }\r\n\r\n  public int getKezd()\r\n  {\r\n    return kezd;\r\n  }\r\n\r\n  public int getVege()\r\n  {\r\n    return vege;\r\n  }\r\n  \r\n  public void setKezd(int kezd)\r\n  {\r\n    this.kezd = kezd;\r\n    this.vege = kezd + hosszMp;\r\n  }\r\n\r\n  @Override\r\n  public String toString()\r\n  {\r\n    return "Zene{" + "radio=" + radio + ", perc=" + perc\r\n      + ", mperc=" + mperc + ", azonosito=" + azonosito + ", eloado="\r\n      + eloado + ", cim=" + cim + ", hosszMp=" + hosszMp\r\n      + ", kezd=" + kezd + ", vege=" + vege + '}';\r\n  }\r\n}\r\n<\/pre>\n
A feladat megold\u00e1sa:<\/p>\n
\r\n\/**\r\n *\r\n * @author https:\/\/webotlet.hu\r\n *\/\r\npackage webotlet_06okt_zenei_adok_java_v2;\r\n\r\nimport java.io.IOException;\r\nimport java.io.RandomAccessFile;\r\nimport java.util.ArrayList;\r\nimport java.util.Scanner;\r\n\r\npublic class Webotlet_06okt_zenei_adok_java_v2\r\n{\r\n  public static void main(String[] args)\r\n  {\r\n    \/\/ 1. feladat\r\n    ArrayList<Zene> zenek = new ArrayList<>();\r\n    \r\n    try\r\n    {\r\n      RandomAccessFile raf = new RandomAccessFile("musor.txt", "r");\r\n      raf.readLine();\r\n      String sor;\r\n      \r\n      for( sor = raf.readLine(); sor != null; sor = raf.readLine() )\r\n      {\r\n        zenek.add(new Zene(sor.split(" ", 4)));\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    \r\n    \/\/ 2. feladat\r\n    System.out.println("2. feladat");\r\n    \r\n    int[] dbRadiok = new int[4];\r\n    \r\n    for( Zene zene : zenek)\r\n    {\r\n      dbRadiok[zene.getRadio()]++;\r\n    }\r\n        \r\n    for( int i = 1; i < dbRadiok.length; i++ )\r\n    {\r\n      System.out.println(i + ". radio: " + dbRadiok[i]);\r\n    }\r\n    \r\n    \/\/ 3. feladat\r\n    System.out.println("3. feladat");\r\n    \r\n    int elsoEric = 0;\r\n    int utolsoEric = 0;\r\n    \r\n    for( int i = 0; i < zenek.size(); i++ )\r\n    {\r\n      if( zenek.get(i).getRadio() == 1 && zenek.get(i).getEloado().equals("Eric Clapton"))\r\n      {\r\n        elsoEric = i;\r\n        break;\r\n      }\r\n    }\r\n\r\n    for( int i = zenek.size() - 1; i >= 0; i-- )\r\n    {\r\n      if( zenek.get(i).getRadio() == 1 && zenek.get(i).getEloado().equals("Eric Clapton"))\r\n      {\r\n        utolsoEric = i;\r\n        break;\r\n      }\r\n    }\r\n    \r\n    int ido = 0;\r\n    \r\n    for( int i = elsoEric; i <= utolsoEric; i++ )\r\n    {\r\n      if( zenek.get(i).getRadio() == 1 )\r\n      {\r\n        ido += zenek.get(i).getHosszMp();\r\n      }\r\n    }\r\n\r\n    System.out.println(idoFormaz(ido));\r\n    \r\n    \/\/ 4. feladat\r\n    System.out.println("4. feladat");\r\n    \r\n    int radio1 = 0;\r\n    int radio2 = 0;\r\n    int radio3 = 0;\r\n    \r\n    for( Zene zene : zenek)\r\n    {\r\n      switch( zene.getRadio() )\r\n      {\r\n        case 1:\r\n          zene.setKezd(radio1);\r\n          radio1 += zene.getHosszMp();\r\n          break;\r\n        case 2:\r\n          zene.setKezd(radio2);\r\n          radio2 += zene.getHosszMp();\r\n          break;\r\n        default:\r\n          zene.setKezd(radio3);\r\n          radio3 += zene.getHosszMp();\r\n          break;\r\n      }\r\n    }\r\n    \r\n    Zene omega = null;\r\n\r\n    for( Zene zene : zenek)\r\n    {\r\n      if( zene.getAzonosito().equals("Omega:Legenda") )\r\n      {\r\n        omega = zene;\r\n        break;\r\n      }\r\n    }\r\n    \r\n    System.out.println("Az Omega:Legenda zene a "\r\n      + omega.getRadio() + ". radion szolt.");\r\n    \r\n    for( Zene zene : zenek)\r\n    {\r\n      if( zene.getRadio() != omega.getRadio() )\r\n      {\r\n        if( omega.getKezd() >= zene.getKezd()\r\n          && omega.getKezd() <= zene.getVege() )\r\n        {\r\n          System.out.println(zene.getRadio() + ": " \r\n            + zene.getEloado() + "-" + zene.getCim());\r\n        }\r\n      }\r\n    }\r\n    \r\n    \/\/ 5. feladat\r\n    System.out.println("5. feladat");\r\n    \r\n    Scanner sc = new Scanner(System.in);\r\n    System.out.println("Add meg a felismert karaktereket!");\r\n    String mintasor = sc.nextLine().toLowerCase();\r\n    \r\n    char[] minta = mintasor.toCharArray();\r\n    try\r\n    {\r\n      RandomAccessFile ki =new RandomAccessFile("keres.txt", "rw");\r\n      ki.setLength(0);\r\n      ki.writeBytes(mintasor + "\\n");\r\n      \r\n      for( Zene zene : zenek)\r\n      {\r\n        String dal = zene.getAzonosito().toLowerCase();\r\n        int talalt = 0;\r\n        for( int j = 0; j < dal.length(); j++ )\r\n        {\r\n          if( talalt < minta.length && dal.charAt(j) == minta[talalt])\r\n          {\r\n            talalt++;\r\n          }\r\n        }\r\n        \r\n        if( talalt == minta.length )\r\n        {\r\n          ki.writeBytes(zene.getAzonosito()+"\\n");\r\n        }\r\n      }\r\n    }\r\n    catch( IOException e )\r\n    {\r\n      System.out.println("HIBA");\r\n    }\r\n\r\n    \/\/ 6. feladat\r\n    System.out.println("6. feladat");\r\n    int musorido = 0;\r\n    \r\n    for( Zene zene : zenek)\r\n    {\r\n      if( zene.getRadio() == 1 )\r\n      {\r\n        if( 3600 - (musorido % 3600) < (60 + zene.getHosszMp()) )\r\n        {\r\n          musorido += 3600 - (musorido % 3600);\r\n          musorido += 180;\r\n        }\r\n        musorido += 60 + zene.getHosszMp();\r\n      }\r\n    }\r\n    \r\n    System.out.println(idoFormaz(musorido));\r\n  }\r\n  \r\n  public static String idoFormaz(int hossz)\r\n  {\r\n    int ora;\r\n    int perc;\r\n    int mperc;\r\n    \r\n    ora = hossz \/ 3600;\r\n    hossz = hossz % 3600;\r\n    perc = hossz \/ 60;\r\n    mperc = hossz % 60;\r\n    return ora + ":" + perc + ":" + mperc;\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. Ezzel a feladattal viszont t\u00f6bb bajom van, amiket az 1. verzi\u00f3 megold\u00e1s\u00e1n\u00e1l le\u00edrtam. Ez a megold\u00e1s list\u00e1val dolgozik, sok helyen foreach ciklust haszn\u00e1lok, \u00e9s egy helyen bemutatok egy switch utas\u00edt\u00e1st Tov\u00e1bb   Java programoz\u00e1s – 2006 okt\u00f3beri 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":[107,109,22,86,144,25],"class_list":["post-2823","post","type-post","status-publish","format-standard","hentry","category-java-emelt-erettsegi-feladatok","tag-emelt-erettsegi","tag-emelt-informatika-erettsegi","tag-fajlkezeles","tag-java","tag-java_programozas","tag-randomaccessfile"],"_links":{"self":[{"href":"https:\/\/www.webotlet.hu\/index.php?rest_route=\/wp\/v2\/posts\/2823","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=2823"}],"version-history":[{"count":1,"href":"https:\/\/www.webotlet.hu\/index.php?rest_route=\/wp\/v2\/posts\/2823\/revisions"}],"predecessor-version":[{"id":2825,"href":"https:\/\/www.webotlet.hu\/index.php?rest_route=\/wp\/v2\/posts\/2823\/revisions\/2825"}],"wp:attachment":[{"href":"https:\/\/www.webotlet.hu\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2823"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.webotlet.hu\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2823"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.webotlet.hu\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2823"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}