Answers for "what is java console"

console java

try(Scanner scan=new Scanner(System.in)){
	//read from console
	String textRead=scan.nextLine();
	//write to console
  	System.out.println(textRead);
}

console java

# comile Java class
javac YourClass.java
# run compiled Java class
java YourClass
# run Java class directly
java YourClass.java
# run JAR
java -jar YourJar.jar