As a new programmar what are some of the things to know

Answer 1

start by learning the syntax.
How to create functions, methods.
How to work with IF-Statements
How to work with Loops
The different type of variables like int, String, char, double, etc.
Learn the right tools first:
System.out.println("Hello World");

Learn these things

Answer 2

pleas help

Answer 3

pleas help

Answer 4

Data structures and Oops concepts