Java Tutorial Java String Operation

Basic

1. Checks if a String is empty (""), null and whitespace only in Java
2. Checks if the String contains only whitespace in Java
3. Check to see if an object is an instance of a number in Java
4. Check to see if Strings are shared in Java
5. Count letters in a String in Java
6. Generated Random Strings in Java
7. Get char in a string by index in Java
8. Get String hash code in Java
9. Get the length of a string in Java

Type

1. Determine If a String Is a Legal Identifier in Java

Validate

1. Validate if a String contains only numbers in Java
2. Validate if string is an integer in Java

Reverse

1. Reverse a string in Java
2. Reverse a string with StringBuffer in Java
3. Reverse the order a string in Java

Replace

1. Replace Character in a String in Java
2. Replace New Lines for string in Java
3. Replace sub string in a String in Java

Repeat

1. Repeat String in Java

Unicode

1. Return the number of bytes that hold an Unicode char in Java

Internationalization

1. Create and use CollationKey in Java
2. Create and use RuleBasedCollator in Java