public class HelloWorld {

       public static void main(String[] args) {

             System.out.println("Hello");

       }

}

int a = 5;                       a++=5 a=6 ++a=7

System.out.println(a++ + ++a);

boolean x = true,   y = false;

System.out.println(!(x && y) || y);

int num = 10;

switch (num) {

      case 10: System.out.print("A");

      case 20: System.out.print("B");

      default: System.out.print("C");

}

for (int i = 0; i < 5; i += 2) {

System.out.print(i);

}

int[] arr = {2, 4, 6, 8};

System.out.println(arr[1] + arr[3]);

String s1 = "Java";

String s2 = new String("Java");

System.out.println(s1.equals(s2));

System.out.println(7 % 4);

java

int x = 5;

System.out.println(x > 3 ? "Yes" : "No");

java

double d = 3.14;

int i = (int) d;

System.out.println(i);

String s = "Hello";

s.concat(" World");

System.out.println(s);

int i = 0;

while (i++ < 3) {

System.out.print(i);

}

System.out.println(10 / 3);