#Java - Code Snippets for '#Character'

#Java - Code Snippets for '#Character' - 16 code snippet(s) found

Sample 1. Code Sample / Example / Snippet of java.text.StringCharacterIterator

    public static String encode(String source) {

        if (source == null) {

            return "$e";

        }

        StringBuffer result = new StringBuffer();

        StringCharacterIterator sci = new StringCharacterIterator(source);

        for (char c = sci.current(); c != CharacterIterator.DONE; c = sci.next()) {

            if (c == '$') {

                result.append("$$");

            }

            else if (c == ',') {

                result.append("$k");

            }

            else if (c == '
') {

                result.append("$n");

            }

            else if (c == '
') {

                result.append("$r");

            }

            else {

                result.append(c);

            }

        }

        return result.toString();

    }

_{Like Feedback java.text.StringCharacterIterator}

Sample 2. Write a Program to print ascii value of each character of a string

public static void main(String[] args) {

      String str = "We are not in Kansas anymore";

      for(char character: str.toCharArray()){

         System.out.println((int)character);

      }

}

_{Like Feedback ascii character}

Sample 3. Remove characters from the String using CharSetUtils

String str = new String("Hello World"); 

String newStr = CharSetUtils.delete(str, "abcde");

System.out.println(newStr); // prints Hllo Worl

_{Like Feedback Remove characters from the String String CharSetUtils Apache Commons}

Sample 4. Method that will remove given character from the String

private static String removeChar(String str, char c) {

  if (str == null)

  return null;

  return str.replaceAll(Character.toString(c), "");

}

_{Like Feedback string string.replaceall Character.toString}

Sample 5. Replace all occurrences of a character or substring in a string

String myString = new String("Nevada,Kansas,Georgia");



myString = myString.replaceAll(",", " ");



System.out.println(myString); // prints Nevada Kansas Georgia

_{Like Feedback string substring replaceAll}

Sample 6. Trim a String till first capital character.

String trimTillFirstCapitalCharacter(String str){

   for(int i=0;i<str.length();i++){

      if(str.charAt(i) != str.toLowerCase().charAt(i)){

         return str.substring(i);

      }

   }

   return str;

}

_{Like Feedback trim characters trim}

Sample 7. Remove Alien characters i.e removing everything except characters , numbers and special characters.

String removeAlienCharacters(String str){

   String newString = new String();

   String returnString = "";

   if(str.contains("<")){

      String[] str2 = str.split("<");

      str = str2[0];

   }

      

   for(char x: str.toCharArray()){

      if((x >= 48 && x <= 57) || (x>=65 && x <= 90) || (x >= 97 && x<= 122) || x=='.'){

         returnString += x;

      }

   }

   return returnString.trim();

}

_{Like Feedback string .contains() .split() string split string contains remove characters from string remove alien characters}

Sample 8. Repeat a string using Google Guava Strings Class

System.out.println(Strings.repeat("Hello", 5));

_{Like Feedback google guava google guava string strings.repeat repeat characters repeat string}

Sample 9. Usage of Apache Commons CharSet

String str = new String("Hello World");

CharSet charSet = CharSet.getInstance(str);

System.out.println(charSet.contains('W')); // prints true

System.out.println(charSet.contains('w')); // prints false

_{Like Feedback CharSet Apache Commons CharSet Example CharSet Sample String characters}

Sample 10. Remove special characters from a String using CharSetUtils ( Apache Commons )

String str = new String("What's Up ?"); 



String newStr = CharSetUtils.delete(str, "'?");



System.out.println(newStr); // prints Whats Up

_{Like Feedback Apache Commons CharSetUtils Remove characters from String}

Sample 11. Check if the String contains specified characters using CharSetUtils (Apache Commons)

System.out.println(CharSetUtils.containsAny("Whats Up ?", "W")); // Prints true as the String contains character W  System.out.println(CharSetUtils.containsAny("Whats Up ?", "YZ")); // Prints false as the String doesn't contain character Y or Z

_{Like Feedback CharSetUtils (Apache Commons) Check if String contains characters}

Sample 12. Print the characters that exist in the specified String using CharSetUtils ( Apache Commons )

System.out.println(CharSetUtils.keep("Whats Up ?", "Watch")); // Prints Wat as only those characters matches in the String

_{Like Feedback Characters that exist in String CharSetUtils ( Apache Commons )}

Sample 13. Get Length of String having UTF8 Characters

public static int utf8Length(String string) {

   CharacterIterator iter = new StringCharacterIterator(string);

   char ch = iter.first();

   int size = 0;

   while (ch != CharacterIterator.DONE) {

      if ((ch >= 0xD800) && (ch < 0xDC00)) {

         char trail = iter.next();

         if ((trail > 0xDBFF) && (trail < 0xE000)) {

            size += 4;

         } else {

            size += 3;

            iter.previous(); // rewind one

         }

      } else if (ch < 0x80) {

         size++;

      } else if (ch < 0x800) {

         size += 2;

      } else {

         size += 3;

      }

      ch = iter.next();

   }

   return size;

}

_{Like Feedback UTF8 characters CharacterIterator.DONE CharacterIterator StringCharacterIterator}

Sample 14. Print duplicate characters in a string / char array without using library

public class CountDuplicates {

   public static void main(String[] args){

      char[] alreadyOccured = new char[10];

      

      char[] charArray = {'b','u','g','g','y','b','r','e','a','d'};

      

      for(int countArray=0;countArray<charArray.length;countArray++){

         boolean charAlreadyOccured = false;

         for(int countAlreadyOccured=0;countAlreadyOccured<alreadyOccured.length;countAlreadyOccured++){

            if(charArray[countArray] == alreadyOccured[countAlreadyOccured]){

               charAlreadyOccured = true;

               break;

            }

         }

         if(charAlreadyOccured){

            System.out.println(charArray[countArray]);

         } else {

            alreadyOccured[countArray] = charArray[countArray]; 

         }

      }

   }

}

_{Like Feedback string char array}

Sample 15. Write a Program to replace characters in a String ( without using String replace method )

public class ReplaceCharacters{

   public static void main(String[] args){

      String str = "Hello BuggyBread";

      

      char[] charArray = str.toCharArray();

      int countCharacter = str.length();

      for(int count=0;count<countCharacter;count++){

         if(charArray[count] == 'g'){

            charArray[count] = 'd';

         }

      }

      String replacedString = new String(charArray).toString();

      

      System.out.println(replacedString);

   }

}

_{Like Feedback string replace characters in a string}

Sample 16. Write a Program to right shift single character in a string

public class RightShiftCharacter {

   public static void main(String args[]) {

      String str = "Hello";

      

      char[] charArray = str.toCharArray();

      

      for(int count=charArray.length-1;count>0;count--){

         charArray[count] = charArray[count-1];

      }

      

      String newString = new StringBuilder().append(charArray).toString();

      

      System.out.println(newString);        

   }

}

_{Like Feedback string manipulation.right shift character}

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