C++ and Java are both object-oriented programming languages, but they have some key differences.

• C++ is a compiled language, while Java is an interpreted language. This means that C++ code is converted into machine code before it is executed, while Java code is converted into bytecode that is then interpreted by the Java Virtual Machine (JVM).
• C++ is a statically typed language, while Java is a dynamically typed language. This means that the data types of variables must be declared in C++, while they are inferred by the compiler in Java.
• C++ allows for manual memory management, while Java uses garbage collection. This means that programmers in C++ are responsible for allocating and freeing memory, while programmers in Java do not need to worry about memory management.
• C++ is a more complex language than Java. This is because C++ has a larger feature set and more complex syntax.

As a result of these differences, C++ is typically used for systems programming, while Java is typically used for application programming.