/*  Program for Java arithmetic and type conversions
*/

public class arithmetic
{
public static void main(String[] args)
{
	int num1, num2 = 6;
	float real1 = 12.45f;
	double bigreal, d;
	
	num1 = 10;
	num1 = num2 + 23 - num1 * 3;	// -1
	num1 = 10;
	num1 = num2 + (23 - num1) * 3;  // 45
	
	d = real1;	// implicit conversion
	bigreal = -234;	// implicit conversion
	num2 = '*';		// implicit conversion
	
//NOT:	num1 = 4.7;
	num1 = (int) 4.7;  // explicit conversion, typecast
	// num1 is now 4 (truncates)
	
	num2 = (int) Math.round(4.302940);	// 4
	num1 = (int) Math.floor(2345.86759);	// 2345
	System.out.println("num1 is " + num1);
	num2 = (int) Math.ceil(4.3540495);		// 5
	System.out.println("sqrt of 26 is " + Math.sqrt(26));
	
	System.out.println(num1);
	System.out.println(num1 + num2);
	System.out.println(num1 + ' ' + num2);
	System.out.println(num1 + " " + num2);
	System.out.println("num1 and num2 are " + num1 + num2);
	System.out.println(num1 + num2 + "are nums ");
	System.out.println("sum is " + (num1 + num2));

	num1 = 3;
	bigreal = 20.34;
	d = bigreal / 2 + 14 * num1 / 5;  // 18.17
	d = bigreal / 2 + 14 * num1 / 5.0;  // 18.57
	num2 = 5;
	d = bigreal / 2 + 14 * (double) num1 / num2;  // 18.57
	
	num2 = 42 % 5;		// 2 is 42 "mod" 5, division remainder
	num1 = 7 % 23; 	// 7

	bigreal = 10 / 3;     // 3.0
	bigreal =  10 / 3.0;   // 3.333333333333333
	System.out.println(d + " " + num2 + " " + bigreal);
	System.out.printf("%.1f %5d %15.8f\n", d, num2, bigreal);
	System.out.println("end");
	

	// shortcuts
	
	int num = 6;
	double result;
	num = num * 2;   // 12
	num *= 2;			// 24
	
	num = num + 10;	// 34
	num += 10;			// 44

	num = num + 1;		// 45
	num += 1;			// 46
	num++;				// 47
	++num;				// 48
	
	num = 6;
	result = 10 + num++;
	System.out.println(result + " " + num);	// 16.0   7
	
	num = 6;
	result = 10 + ++num;
	System.out.println(result + " " + num);	// 17.0   7
	
	num--;
	int a = 9;
	num = a % 2 - 2 % a ;
	System.out.println(num);

}
}