Java: Getting a substring from a string starting after a particular character

Java: Getting a substring from a string starting after a particular character

In Java, you can use the substring method to get a substring from a string starting after a particular character. Here's an example:

public class SubstringExample { public static void main(String[] args) { String originalString = "Hello World"; char targetCharacter = 'o'; // Find the index of the target character int indexOfTarget = originalString.indexOf(targetCharacter); if (indexOfTarget != -1) { // Get the substring starting after the target character String substring = originalString.substring(indexOfTarget + 1); System.out.println("Original String: " + originalString); System.out.println("Substring starting after '" + targetCharacter + "': " + substring); } else { System.out.println("Target character not found in the original string."); } } }

In this example:

  • indexOf method is used to find the index of the target character.
  • If the target character is found (indexOfTarget != -1), substring is used to get the substring starting after the target character.
  • The +1 in substring(indexOfTarget + 1) is to exclude the target character itself.

Replace the originalString and targetCharacter with your actual values. This example assumes you are working with a single character, but you can modify it for more complex scenarios based on your requirements.

Examples

  1. "Java substring after specific character"

    • Code Implementation:
      String originalString = "example:substring"; String delimiter = ":"; String substring = originalString.substring(originalString.indexOf(delimiter) + delimiter.length());
    • Description: Use substring and indexOf to get the substring after a specific character (e.g., ":").

  2. "Java split string and get second part"

    • Code Implementation:
      String originalString = "example:substring"; String[] parts = originalString.split(":"); String substring = parts.length > 1 ? parts[1] : "";
    • Description: Split the string based on a specific character (e.g., ":") and retrieve the second part.

  3. "Java regex substring after character"

    • Code Implementation:
      String originalString = "example:substring"; String delimiter = ":"; String substring = originalString.replaceAll(".*" + delimiter, "");
    • Description: Use regex with replaceAll to get the substring after a specific character (e.g., ":").

  4. "Java substring after last occurrence of character"

    • Code Implementation:
      String originalString = "example:substring:another"; String delimiter = ":"; String substring = originalString.substring(originalString.lastIndexOf(delimiter) + delimiter.length());
    • Description: Get the substring after the last occurrence of a specific character (e.g., ":") using substring and lastIndexOf.

  5. "Java substring after space character"

    • Code Implementation:
      String originalString = "example substring"; String delimiter = " "; String substring = originalString.substring(originalString.indexOf(delimiter) + delimiter.length());
    • Description: Get the substring after a space character using substring and indexOf.

  6. "Java substring after dot character"

    • Code Implementation:
      String originalString = "example.substring"; String delimiter = "\\."; String substring = originalString.split(delimiter, 2)[1];
    • Description: Split the string based on a dot character (escaped as "\."), and retrieve the second part.

  7. "Java substring after specific word"

    • Code Implementation:
      String originalString = "example:substring"; String keyword = "example:"; String substring = originalString.substring(originalString.indexOf(keyword) + keyword.length());
    • Description: Get the substring after a specific word using substring and indexOf.

  8. "Java substring after newline character"

    • Code Implementation:
      String originalString = "example\nsubstring"; String delimiter = "\n"; String substring = originalString.substring(originalString.indexOf(delimiter) + delimiter.length());
    • Description: Get the substring after a newline character using substring and indexOf.

  9. "Java substring after first occurrence of digit"

    • Code Implementation:
      String originalString = "example123substring"; String substring = originalString.replaceAll(".*?(\\d+).*", "$1");
    • Description: Use regex with replaceAll to get the substring after the first occurrence of a digit.

  10. "Java substring after specific character excluding the character"

    • Code Implementation:
      String originalString = "example:substring"; String delimiter = ":"; String substring = originalString.substring(originalString.indexOf(delimiter) + 1);
    • Description: Get the substring after a specific character (e.g., ":") without including the character itself.

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