Java Programming

class

declares the .java title.

without putting “Public” before it, you are not allowing other programs/files in the project to access it.

public static void main(String[] args) {}

Needed for programs like System.out.println(“Hello World!”);

System.out.println(“Hello World!”);

prints out “Hello World!” to the console.

Double variable = ;

Declares a double (number with decimals included) named variable that has a value of that amount.

int variable = ;

declares an integer (NO DECIMALS) variable named variable.

Boolean variable = ;

can only be true or false

import java.util.Scanner;

needed for user input.

scanner input = new Scanner(system.in);

create scanner object, needs to be declared before the use of input.

input.close();

closes the input scanner. This must be used after the scanner.

double userInput = input.nextDouble();

next input is set to that variable