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#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


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 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


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 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


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 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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