public class Ex02Variable	//class and file have same name
{
	public static void main(String[] args)
	{
		int value; //integer variable
		value = 5;
		System.out.print("The value is " + value + "\n");
		
		//all variables should be declared up front, this is bad practice, only for showing data types
		byte inches; //-128 to 127
		inches = 127;		//128 gives error messsage
		System.out.print("The byte variable is " + inches + "\n");
		
		int speed = 2147483647;  //-2,147,483,648 to +2,147,483,647
		System.out.print("The int variable is " + speed + "\n");
		
		//F for float, scientific notation
		float commission = 0.00000000000034F; //+-3.4x10^-38 to +-3.4x10^38
		System.out.print("The float variable is " + commission + "\n");
		double distance = 1.7E308; //+-1.7x10^-308 to +-1.7x10^308
		System.out.print("The double variable is " + distance + "\n");
		
		//boolean
		boolean bool;
		bool = true;
		System.out.println(bool);
		bool = false;
		System.out.println(bool);
		
		//char data type
		char letter;
		letter = 'A';
		System.out.println(letter);
		letter = 65;  //Unicode character set, Java uses Unicode
		System.out.println(letter);
		
	}
}