import java.util.*; public class Main { public static void main(String[] args) { System.out.println(Integer.class.isInstance(10)); System.out.println(Long.class.isInstance(10)); System.out.println(Long.class.isInstance(10L)); System.out.println(Double.class.isInstance(3.14)); System.out.println(Float.class.isInstance(3.14)); System.out.println(Float.class.isInstance(3.14f)); System.out.println("5 + 2 * 4 = " + (5 + 2 * 4)); System.out.println("(5 + 2) * 4 = " + ((5 + 2) * 4)); System.out.println("3 % -5 = " + 3 % -5); System.out.println("-3 % 5 = " + -3 % 5); System.out.println("-3 % -5 = " + -3 % -5); System.out.println(1000000 * 1000000); System.out.println(2.0d - 2.01d); int x = 3; int y = 5*x*x-2; // y=5∙x^2-2 System.out.println(y); int c = 0; c = c + 1; c += 1; c++; System.out.println(c); int answer = x++ * 10; // answer = 30, x = 4 x = 3; answer = ++x * 10; // answer = 40, x = 4 final double PI = 3.14159; final int ARRAY_SIZE = 100; char char1 = 'α'; char char2 = 'γ'; //char char3 = char1 + char2; int char3 = char1 + char2; System.out.println(char3); char char33 = (char) (char1 + char2); System.out.println(char33); int ichar1 = 'α'; // κωδικός ASCII System.out.println(ichar1); char cchar = 945; System.out.println(cchar); System.out.println(++cchar); System.out.println(--cchar); char ui = Character.MAX_VALUE; System.out.println(ui); System.out.println((int)ui); System.out.println((int)++ui); System.out.println((int)--ui); short xx = 10; int yy = 5; //short zz = xx + yy; int zz = xx + yy; System.out.println(zz); char a = '1'; int b = 1; System.out.println(a + b); System.out.println((byte)260); System.out.println((int) (char) (byte) -1); System.out.println(Integer.toBinaryString(-1)); System.out.println(Integer.toBinaryString((int) (char) (byte) -1)); } }