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What are the methods of the String class?

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Answer from AI

  • charAt(int index) - returns the character at the specified index.
  • length() - returns the length of the string.
  • substring(int beginIndex) - returns a substring starting from the specified index.
  • substring(int beginIndex, int endIndex) - returns a substring from the start to the end index (excluding the end).
  • concat(String str) - concatenates two strings.
  • equals(Object anObject) - compares two strings for equality.
  • equalsIgnoreCase(String anotherString) - compares two strings ignoring case.
  • indexOf(int ch) - returns the index of the first occurrence of the specified character.
  • indexOf(int ch, int fromIndex) - returns the index of the first occurrence of the character starting from the specified index.
  • indexOf(String str) - returns the index of the first occurrence of the specified substring.
  • indexOf(String str, int fromIndex) - returns the index of the first occurrence of the substring starting from the specified index.
  • lastIndexOf(int ch) - returns the index of the last occurrence of the character.
  • lastIndexOf(String str) - returns the index of the last occurrence of the substring.
  • startsWith(String prefix) - checks if the string starts with the specified prefix.
  • endsWith(String suffix) - checks if the string ends with the specified suffix.
  • contains(CharSequence s) - checks if the string contains the specified sequence of characters.
  • replace(char oldChar, char newChar) - replaces all occurrences of one character with another.
  • replace(CharSequence target, CharSequence replacement) - replaces all occurrences of a substring with another substring.
  • replaceAll(String regex, String replacement) - replaces all substrings matching the regex with another substring.
  • split(String regex) - splits the string into an array of substrings based on the regex.
  • toLowerCase() - converts the string to lowercase.
  • toUpperCase() - converts the string to uppercase.
  • trim() - removes leading and trailing spaces.
  • valueOf(boolean b) - returns the string representation of a boolean value.
  • valueOf(char c) - returns the string representation of a character.
  • valueOf(char[] data) - returns the string representation of a character array.
  • valueOf(double d) - returns the string representation of a double-precision floating-point number.
  • valueOf(float f) - returns the string representation of a float.
  • valueOf(int i) - returns the string representation of an integer.
  • valueOf(long l) - returns the string representation of a long integer.
  • valueOf(Object obj) - returns the string representation of an object.
  • toCharArray() - converts the string to a character array.
  • isEmpty() - checks if the string is empty.
  • getBytes() - returns the string as a byte array.
  • compareTo(String anotherString) - compares two strings lexicographically.
  • matches(String regex) - checks if the string matches the regex.
What are the methods of the String class? — QA / QA… - sobes.tech