{"id":2711,"date":"2019-10-30T20:30:24","date_gmt":"2019-10-30T19:30:24","guid":{"rendered":"http:\/\/www.webotlet.hu\/?p=2711"},"modified":"2019-10-30T20:30:24","modified_gmt":"2019-10-30T19:30:24","slug":"java-programozas-2005-oktober-emelt-informatika-erettsegi-programozasi-feladatanak-megoldasa","status":"publish","type":"post","link":"https:\/\/www.webotlet.hu\/?p=2711","title":{"rendered":"Java programoz\u00e1s – 2005 okt\u00f3ber emelt informatika \u00e9retts\u00e9gi programoz\u00e1si feladat\u00e1nak megold\u00e1sa"},"content":{"rendered":"

A feladat le\u00edr\u00e1s\u00e1t, melynek a megold\u00e1s\u00e1t k\u00f6zz\u00e9teszem innen<\/a> t\u00f6ltheted le.<\/p>\n

\r\n\/**\r\n *\r\n * @author https:\/\/webotlet.hu\r\n *\/\r\npackage webotlet_05okt_kodol_java;\r\n\r\nimport java.io.IOException;\r\nimport java.io.RandomAccessFile;\r\nimport java.util.Scanner;\r\n\r\npublic class Webotlet_05okt_kodol_java\r\n{\r\n  public static void main(String[] args)\r\n  {\r\n    System.out.println("1. feladat");\r\n    \/\/ ekezetes beolvasas\r\n    Scanner sc = new Scanner(System.in, "iso-8859-2");\r\n    System.out.println("Adj meg egy szoveget:");\r\n    String nyilt = sc.nextLine();\r\n    \r\n    System.out.println("2. feladat");\r\n    \/\/ nagybetus\r\n    nyilt = nyilt.toUpperCase();\r\n    \r\n    \/\/ ekezetes cserek\r\n    String[] mit = new String[]  {"\u00c1","\u00c9","\u00cd","\u00d3","\u00d6","\u0150","\u00da","\u00dc","\u0170"," "};\r\n    String[] mire = new String[] {"A","E","I","O","O","O","U","U","U", ""};\r\n    \r\n    for( int i = 0; i < mit.length; i++ )\r\n    {\r\n      nyilt = nyilt.replaceAll(mit[i], mire[i]);\r\n    }\r\n    \r\n    \/\/ nem betuk torlese\r\n    char[] kar = nyilt.toCharArray();\r\n    nyilt = "";\r\n    \r\n    for( int i = 0; i < kar.length; i++ )\r\n    {\r\n      if( Character.isAlphabetic(kar[i]) )\r\n      {\r\n        nyilt = nyilt.concat(Character.toString(kar[i]));\r\n      }\r\n    }\r\n    \r\n    System.out.println("3. feladat");\r\n    System.out.println(nyilt);\r\n    \r\n    System.out.println("4. feladat");\r\n    System.out.println("Adj meg egy legfeljebb 5 karakteres kulcssszot:");\r\n    String k = sc.nextLine().toUpperCase();\r\n    \r\n    System.out.println("5. feladat");\r\n    \r\n    String kszoveg = "";\r\n    int hanyszor = nyilt.length() \/ k.length();\r\n    \r\n    for( int i = 0; i < hanyszor; i++ )\r\n    {\r\n      kszoveg = kszoveg.concat(k);\r\n    }\r\n    \r\n    if( kszoveg.length() < nyilt.length() )\r\n    {\r\n      kszoveg = kszoveg.concat(k.substring(0, nyilt.length() - kszoveg.length() ) );\r\n    }\r\n    \r\n    System.out.println(kszoveg);\r\n    \r\n    System.out.println("6. feladat");\r\n    String[] kodtabla = null;\r\n    \r\n    try\r\n    {\r\n      RandomAccessFile raf = new RandomAccessFile("vtabla.dat", "r");\r\n      String sor;\r\n      int db = 0;\r\n      for( sor = raf.readLine(); sor != null; sor = raf.readLine() )\r\n      {\r\n        db++;\r\n      }\r\n      kodtabla = new String[db];\r\n      \r\n      raf.seek(0);\r\n      int hely = 0;\r\n      for( sor = raf.readLine(); sor != null; sor = raf.readLine() )\r\n      {\r\n        kodtabla[hely] = sor;\r\n        hely++;\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    String kodolt = "";\r\n    \r\n    for( int i = 0; i < nyilt.length(); i++ )\r\n    {\r\n      int sor = 0;\r\n      int oszlop = 0;\r\n      \/\/ megkeressuk a tabla elso oszlopaban -> .charAt(0)\r\n      \/\/ a nyilt szoveg aktualis karakteret\r\n      for( int j = 0; j < kodtabla.length; j++ )\r\n      {\r\n        if( kodtabla[j].charAt(0) == nyilt.charAt(i) )\r\n        {\r\n          sor = j;\r\n          break;\r\n        }\r\n      }\r\n      \r\n      \/\/ megkeressuk a tabla elso soraban -> kodtabla[0]\r\n      \/\/ a nyilt szoveg aktualis karakteret\r\n      for( int j = 0; j < kodtabla[0].length(); j++ )\r\n      {\r\n        if( kodtabla[0].charAt(j) == kszoveg.charAt(i) )\r\n        {\r\n          oszlop = j;\r\n          break;\r\n        }\r\n      }\r\n      \r\n      kodolt = kodolt.concat(kodtabla[sor].charAt(oszlop)+"");\r\n    }\r\n    \r\n    System.out.println("7. feladat");\r\n    System.out.println(kodolt);\r\n    try\r\n    {\r\n      RandomAccessFile out = new RandomAccessFile("kodolt.dat", "rw");\r\n      out.setLength(0);\r\n      out.writeBytes(kodolt + "\\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. \/** * * @author https:\/\/webotlet.hu *\/ package webotlet_05okt_kodol_java; import java.io.IOException; import java.io.RandomAccessFile; import java.util.Scanner; public class Webotlet_05okt_kodol_java { public static void main(String[] args) { System.out.println("1. feladat"); \/\/ ekezetes beolvasas Scanner Tov\u00e1bb   Java programoz\u00e1s – 2005 okt\u00f3ber emelt informatika \u00e9retts\u00e9gi programoz\u00e1si feladat\u00e1nak megold\u00e1sa<\/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":[],"class_list":["post-2711","post","type-post","status-publish","format-standard","hentry","category-java-emelt-erettsegi-feladatok"],"_links":{"self":[{"href":"https:\/\/www.webotlet.hu\/index.php?rest_route=\/wp\/v2\/posts\/2711","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=2711"}],"version-history":[{"count":1,"href":"https:\/\/www.webotlet.hu\/index.php?rest_route=\/wp\/v2\/posts\/2711\/revisions"}],"predecessor-version":[{"id":2712,"href":"https:\/\/www.webotlet.hu\/index.php?rest_route=\/wp\/v2\/posts\/2711\/revisions\/2712"}],"wp:attachment":[{"href":"https:\/\/www.webotlet.hu\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2711"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.webotlet.hu\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2711"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.webotlet.hu\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2711"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}