online program compiler java code example
Example 1: compile java online
Compile on w3 schools: ttps://www.w3schools.com/java/java_compiler.asp
Example 2: online java compiler
SandBox: https://codesandbox.io/
Example 3: online java compiler
Repl.it Compiler: click source buttton to go to the website
Pros: You can add files, do javafx and jswing.