JavaFX | Insets Class

Insets class is a part of JavaFX. Insets class stores the inside offsets for the four sides of the rectangular area. Insets class inherits java.lang.Object class.

Constructors of the class:

1. Insets(double a): Constructs a new Insets instance with same value for all four offsets.
2. Insets(double top, double right, double bottom, double left): Constructs a new Insets instance with four different offsets.

Commonly Used Methods:

Method	Explanation
equals(java.lang.Object obj)	Indicates whether some other object is “equal to” this one.
getBottom()	returns the inset on bottom side
getLeft()	returns the inset on left side
getRight()	returns the inset on Right side
getTop()	returns the inset on top side
hashCode()	returns the hashcode for the class

Below programs will illustrate the use of the Insets class:

1. Java program to create two insets object and display the contents: This program creates two Insets named insets_1 and insets_2. The insets are passed as arguments when the constructor is called. We will get four sides of the insets object using getTop(), getBottom(), getLeft(), getRight() function and display them.

   // Java program to create two insets
   // object and display the contents
   import javafx.geometry.Insets;
   
   public class Insets_1 {
   
       // Main Method
       public static void main(String args[])
       {
   
           // create two insets object
           Insets insets_1 = new Insets(20.0f);
           Insets insets_2 = new Insets(20.0f, 40.0f, 60.0f, 70.0f);
   
           // display the insets
           display(insets_1);
           display(insets_2);
       }
   
       // display method
       public static void display(Insets insets)
       {
           double left, right, bottom, top;
   
           // get the insets
           left = insets.getLeft();
           right = insets.getRight();
           bottom = insets.getBottom();
           top = insets.getTop();
   
           // display the insets
           System.out.println("Insets of the object");
           System.out.println("Left= " + left + ", Right = "
                              + right + ", Bottom = " + bottom
                              + ", Top = " + top);
       }
   }

   Output:

   Insets of the object
   Left = 20.0, Right = 20.0, Bottom = 20.0, Top = 20.0
   Insets of the object
   Left = 70.0, Right = 40.0, Bottom = 60.0, Top = 20.0
   

2. Java program to create three objects of insets and display its contents and check whether they are equal to each other or not: This program creates three Insets named insets_1, insets_2, and insets_3. The insets are passed as arguments when the constructor is called. We will get four sides of the insets object using getTop(), getBottom(), getLeft(), getRight() function and display them. We will also check whether the insets are equal to each other using the equals function.

   // Java program to create three objects of insets
   // and display its contents and check whether
   // they are equal to each other or not
   import javafx.geometry.Insets;
   
   public class Insets_2 {
   
       // Main Method
       public static void main(String args[])
       {
   
           // create three insets objects
           Insets insets_1 = new Insets(120.0f, 150.0f,
                                         40.0f, 60.0f);
   
           Insets insets_2 = new Insets(120.0f, 150.0f,
                                          40.0f, 60.0f);
   
           Insets insets_3 = new Insets(200.0f, 120.0f,
                                         60.0f, 40.0f);
   
           // display the 3 insets
           display(insets_1);
           display(insets_2);
           display(insets_3);
   
           // check whether any insets is equal to other or not
           System.out.println("Insets 1 equals Insets 2 = "
                              + insets_1.equals(insets_2));
   
           System.out.println("Insets 2 equals Insets 3 = "
                               + insets_2.equals(insets_3));
   
           System.out.println("Insets 3 equals Insets 1 = "
                               + insets_3.equals(insets_1));
       }
   
       // display Method
       public static void display(Insets insets)
       {
           double left, right, bottom, top;
   
           // get the insets
           left = insets.getLeft();
           right = insets.getRight();
           bottom = insets.getBottom();
           top = insets.getTop();
   
           // display the insets
           System.out.println("Insets of the object");
           System.out.println("Left= " + left + ", Right= "
                              + right + ", Bottom= " + bottom
                              + ", Top = " + top);
       }
   }

   Output:

   Insets of the object
   Left= 60.0, Right= 150.0, Bottom= 40.0, Top = 120.0
   Insets of the object
   Left= 60.0, Right= 150.0, Bottom= 40.0, Top = 120.0
   Insets of the object
   Left= 40.0, Right= 120.0, Bottom= 60.0, Top = 200.0
   Insets 1 equals Insets 2 = true
   Insets 2 equals Insets 3 = false
   Insets 3 equals Insets 1 = false
   

Note: The above programs might not run in an online IDE. Please use an offline compiler.

Reference: https://docs.oracle.com/javafx/2/api/javafx/geometry/Insets.html