Java Wrapper Classes

📘 Premium Read: Access my best content on Medium member-only articles — deep dives into Java, Spring Boot, Microservices, backend architecture, interview preparation, career advice, and industry-standard best practices.

✅ Some premium posts are free to read — no account needed. Follow me on Medium to stay updated and support my writing.

🎓 Top 10 Udemy Courses (Huge Discount): Explore My Udemy Courses — Learn through real-time, project-based development.

▶️ Subscribe to My YouTube Channel (172K+ subscribers): Java Guides on YouTube

Wrapper Classes Basics

• Wrapper Classes in Java
• Autoboxing and Unboxing in Java

Wrapper Classes API Guide

1. Integer Wrapper Class in Java
2. Long Wrapper Class in Java
3. Float Wrapper Class in Java
4. Double Wrapper Class in Java
5. Boolean Wrapper Class in Java
6. Short Wrapper Class in Java
7. Byte Wrapper Class in Java
8. Character Wrapper Class in Java

Wrapper Classes to String Conversion Examples

Conversion from String to Wrapper classes or Primitive types

• Java Convert Integer to String Example
• Java Convert Float to String Example
• Java Convert Double to String Example
• Java Convert Short to String Example
• Java Convert Long to String Example
• Java Convert Character to String Example
• Java Convert Byte to String Example
• Java Convert Boolean to String Example

Conversion from Wrapper classes or Primitive types to String

• Java Convert String To Short Example
• Java Convert String To Long Example
• Java Convert String To Integer Example
• Java Convert String To Float Example
• Java Convert String To Double Example
• Java Convert String To Byte Example
• Java Convert String To Boolean Example

Java Boolean API Guides

• Java Boolean booleanValue() Method
• Java Boolean compare() Method
• Java Boolean compareTo() Method
• Java Boolean getBoolean() Method
• Java Boolean logicalAnd() Method
• Java Boolean logicalOr() Method
• Java Boolean logicalXor() Method
• Java Boolean toString() Method
• Java Boolean parseBoolean() Method
• Java Boolean valueOf() Method

Java Character API Guides

• Java Character isDigit() Method
• Java Character isLetterOrDigit() Method
• Java Character charValue() Method
• Java String codePointAt() Method
• Java Character compare() Method
• Java Character compareTo() Method
• Java Character forDigit() Method
• Java Character getName() Method
• Java Character getNumericValue() Method
• Java Character isISOControl() Method
• Java Character isLowerCase() Method
• Java Character isEmoji() Method (Introduced in Java 21)
• Java Character isSpaceChar() Method
• Java Character isTitleCase() Method
• Java Character isUpperCase() Method
• Java Character isWhitespace() Method
• Java Character toLowerCase() Method
• Java Character toString() Method
• Java Character valueOf() Method
• Java Character toTitleCase() Method
• Java Character toUpperCase() Method

Java Double API Guides

• Java Double byteValue() Method
• Java Double doubleValue() Method
• Java Double floatValue() Method
• Java Double isInfinite() Method
• Java Double isNaN() Method
• Java Double longValue() Method
• Java Double max() and min() Methods
• Java Double parseDouble() Method
• Java Double shortValue() Method
• Java Double sum() Method
• Java Double toString() Method
• Java Double valueOf() Method

Java Float API Guides

• Java Float byteValue() Method
• Java Float doubleValue() Method
• Java Float compare() Method
• Java Float float16ToFloat() Method
• Java Float floatToFloat16() Method
• Java Float floatValue() Method

Java Integer API Guides

• Java Integer bitCount() Method
• Java Integer byteValue() Method
• Java Integer compareTo() Method
• Java Integer decode() Method
• Java Integer doubleValue() Method
• Java Integer floatValue() Method
• Java Integer getInteger() Method
• Java Integer intValue() Method
• Java Integer longValue() Method
• Java Integer parseInt() Method
• Java Integer parseUnsignedInt() Method
• Java Integer reverse() Method
• Java Integer rotateLeft() Method
• Java Integer rotateRight() Method
• Java Integer sum() Method
• Java Integer toBinaryString() Method
• Java Integer toOctalString() Method
• Java Integer toString() Method
• Java Integer valueOf() Method

Java Long API Guides

• Java Long bitCount() Method
• Java Long byteValue() Method
• Java Long doubleValue() Method
• Java Long floatValue() Method
• Java Long getLong() Method
• Java Long longValue() Method
• Java Long parseLong() Method
• Java Long reverse() Method
• Java Long shortValue() Method
• Java Long toString() Method
• Java Long valueOf() Method
• Java Long sum() Method

Java Short API Guides

• Java Short byteValue() Method
• Java Short compareTo() Method
• Java Short doubleValue() Method
• Java Short floatValue() Method
• Java Short longValue() Method
• Java Short intValue() Method
• Java Short shortValue() Method
• Java Short parseShort() Method
• Java Short toString() Method
• Java Short valueOf() Method

Java Byte API Guides

• Java Byte byteValue() Method
• Java Byte compareTo() Method
• Java Byte doubleValue() Method
• Java Byte floatValue() Method
• Java Byte intValue() Method
• Java Byte parseByte() Method
• Java Byte shortValue() Method
• Java Byte toString() Method
• Java Byte valueOf() Method