1. String1.1. Concatenation1.1.1. Concatenation Rules1.2. Immutability1.3. String Methods1. length()2. charAt()3. indexOf()4. substring()5. toLowerCase() and toUpperCase()6. equals() and equalsIgnoreCase()7. startsWith() and endsWith()8. replace()9. contains()10. trim(), strip(), stripLeading(), and stripTrailing()1.4. Method Chaining2.…