System.out.println("Hello") - Full Explanation
System.out.println("Hi Java"); this is used for printing value on console. in the below example System is a class that is present in java.lang package. out is a static variable in the System class that the reason we can access out variable by dot operator. println is a method that is defined in printStream class. For Example: System: System in class present in java.lang package out: is a static variable present in System class println : this is a method present in PrintStream class. class System{ static PrintStream out; ..... }