Strings
9 Topicsā¢9 Completedā¢
100%
1
String Basics
Creating and using String objects
String immutability is frequently tested
2
String Methods
Common methods: length(), charAt(), substring(), etc.
String manipulation in coding tests
3
String Comparison
equals(), equalsIgnoreCase(), compareTo()
== vs equals() is a classic interview question
4
String Immutability
Why strings are immutable in Java
Critical concept for interviews
5
String Pool
String interning and memory optimization
Common interview question
6
StringBuilder
Mutable string operations
Performance optimization questions
7
StringBuffer
Thread-safe mutable strings
StringBuffer vs StringBuilder interview question
8
StringTokenizer
Splitting strings into tokens
9
Regular Expressions
Pattern matching with regex
Regex validation and parsing questions