Java String Examples

• The String class is immutable (constant), i.e. Strings in java, once created and initialized, cannot be changed.
• The String is a final class, no other class can extend it, and you cannot change the state of the string.
• String values cannot be compare with '==', for string value comparision, use equals() method.
• String class supports various methods, including comparing strings, extracting substrings, searching characters & substrings, converting into either lower case or upper case, etc.
• The string examples given below describes more on string functionlaity.

String Sample Code Examples

• String Initialization example
• Copying charactor array to string example
• String concatination example
• String compare example
• Comparing StringBuffer with a String example
• Getting byte array from a string example
• String indexOf() example
• String lastIndexOf() example
• String startsWith() example
• String endsWith() example
• String split function example
• Extract char array from string example
• Replace characters in a string example
• Changing string case example
• Trim spaces in string example
• How to format a string?
• How to match a string with regular expression?
• How to remove multiple space in a string?
• How to remove non-ascii characters from a string?
• How to remove html tags from a string?
• How to get line count from a string?