.class and .java

Question

in java: What's de difference between these two foles: .class and .java? what file is compiled and what file is used for what? I am very confused :))

Answer 1

.java files contain your source code and can be compiled

.class files are the compiled code, but it isnt compiled into machine language, its compiled into java-byte code. when run it will be interpreted by the JVM

Answer 2

.java file contains the code that we write.
.class file is created by the JVM from the .java file. (.class file is also known as the bytecode)

Answer 3

and If i want to acces a file where should i put it? in the class folder or in the java file folder?

Answer 4

class if your program is going to access that 'file'