java object

MyObject objects[] = new MyObject[6];
for (MyObject o: objects) {

    o = new MyObject();
}

MyObject objects[] = new MyObject[6];
for(int i = 0; i < objects.length; i++) {

    objects[i] = new MyObject();
}

person = {
    'name':'john smith'
    'age':41
};

console.log(person);
//this will return [object Object]
//use
console.log(JSON.stringify(person));
//instead

public class MyClass {
  int x = 5;

  public static void main(String[] args) {
    MyClass myObj = new MyClass();
    System.out.println(myObj.x);
  }
}
 

var	person = {
	first_name : "Marty",
  	last_name : "Mcfly",
	born : 1968,
	died : 1933,
    lovers: ["Jennifer Parker","Baines McFly"]
};

// Class Declaration 
  
public class Dog 
{ 
    // Instance Variables 
    String name; 
    String breed; 
    int age; 
    String color; 
  
    // Constructor Declaration of Class 
    public Dog(String name, String breed, 
                   int age, String color) 
    { 
        this.name = name; 
        this.breed = breed; 
        this.age = age; 
        this.color = color; 
    } 
  
    // method 1 
    public String getName() 
    { 
        return name; 
    } 
  
    // method 2 
    public String getBreed() 
    { 
        return breed; 
    } 
  
    // method 3 
    public int getAge() 
    { 
        return age; 
    } 
  
    // method 4 
    public String getColor() 
    { 
        return color; 
    } 
  
    @Override
    public String toString() 
    { 
        return("Hi my name is "+ this.getName()+ 
               ".\nMy breed,age and color are " + 
               this.getBreed()+"," + this.getAge()+ 
               ","+ this.getColor()); 
    } 
  
    public static void main(String[] args) 
    { 
        Dog tuffy = new Dog("tuffy","papillon", 5, "white"); 
        System.out.println(tuffy.toString()); 
    } 
} 

public class HelloWorld {
  public static void main(String[] args) {
    
    // how to use class in java
    class User{
    	
    	int score;
    	
    	// method that can be used outside the class
    	public boolean hasWon(){
    		if(score >= 100){
    			return true;
    		} else {
    			return false;
    		}
    	}
    }
    
    User dave = new User();
    
    dave.score = 20;
    
    System.out.println(dave.hasWon());
    
 
  }
}

// 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());

    }
}

class Number {
    	
    	int number;
    	
    	// square numbers
    	public boolean isSquare(){
    		
    		double squareRoot = Math.sqrt(number);
    		
    		
    		if(squareRoot == Math.floor(squareRoot))
    		{
    			return true;
    		} else {
    			return false;
    		}
    		
    	}
    	
    	// triangular numbers
    	public boolean isTriangular(){
    		
    		int x = 1;
    		
    		int triangularNumber = 1;
    		
    		while(triangularNumber < number){
    			
    			x++;
    			triangularNumber = triangularNumber + x;
    			
    		}
    		
    		if(triangularNumber == number){
    			return true;
    		} else {
    			return false;
    		}
    	}
    }
    
    // testing 
    Number myNumber = new Number();
    myNumber.number = 16;
    
    System.out.println(myNumber.isSquare());

/**
 * This javadoc text will reference Object's 
 * {@link java.lang.Class#toString()} method.
 */
 
// Output in Javadoc:
// This javadoc text will reference Object's Class.toString() method.

//	Example : TestClass (Can be predefined or user-defined)
public class TestClass {
  // properties
  private int id = 111;
  
  // constructor
  public TestClass(){
    super();
  }
  
  // method
  public void test(){
    // some code here
  }
}

An object is a member or an "instance" of a class and has states and behaviors 
  in which all
of its properties have values that you either explicitly define or that 
  are defined by default
settings.
Class can be defined as a template/blueprint that describes the behavior
that the object of its type support.

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