class and object example

Example 1: how to make an objec tjava

class Puppy() {
	String name;
	int age;
  
  
 	Puppy(String puppy_name, int puppy_age) {
    	name = puppy_name;
   		age = puppy_age;
 	}
  
  	public static void main(String[] args) {
     	Puppy rex = new Puppy("rex",4); 
    }
  
}

Example 2: classes in java

// this might help you understand how classes work
public class MathTest {

    public static void main(String[] args) {

        class MathAdd {

            int num1;
            int num2;

            public int addNumbers() {

                int addThemUp = num1 + num2;
                return addThemUp;
            }
        }

        MathAdd addition = new MathAdd(); // create a new instance of the class

        // you can access variables from the class 
        addition.num1 = 10; 
        addition.num2 = 20;

        // and use the method from the class to add them up
        System.out.println(addition.addNumbers());

    }
}