var x = 10; var name = "John"; var isActive = true; 

var a = 5 + 3; // Addition var b = 10 - 4; // Subtraction var c = 3 * 7; // Multiplication var d = 20 / 5; // Division var e = 10 % 3; // Modulo 

var a = true and false; // Logical AND var b = true or false; // Logical OR var c = not true; // Logical NOT 

if x > 5 { print "x is greater than 5"; } else { print "x is not greater than 5"; } 

var i = 0; while i < 5 { print i; i = i + 1; } 

for var i = 0; i < 5; i = i + 1 { print i; } 

fun add(a, b) { var result = a + b; result; // Implicit return } var sum = add(5, 3); print sum; // Outputs: 8 

class Person { var name = "Unknown"; var age = 0; fun setName(newName) { name = newName; } fun setAge(newAge) { age = newAge; } fun introduce() { print "Hello, my name is " + name + " and I am " + age + " years old."; } } // Create a Person instance var person = new Person(); // Set properties person.setName("John"); person.setAge(30); // Call a method person.introduce(); // Outputs: Hello, my name is John and I am 30 years old. 

java -jar lilylang.jar your_program.lily