SpringLayout.Constraints class

[Prashobh Mallu]

Hi All,

I am learning the advanced java program from two months. The advanced java sounds very complicated than core java programming. Specially the inbuilt class of advanced java are very tough to understand. One of them is 'SpringLayout.Constraints class'. I am not getting the exact use of 'SpringLayout.Constraints class'. Do you know anything about the SpringLayout.Constraints class of java? if yes then please let me aware about it.

[Katty]

Hi friend,

The 'class SpringLayout.Constraints' of java is basically the subclass of 'java.lang.Object' package. The SpringLayout.Constraints class normaly encloses the 'SpringLayout class'. The constraint object of the SpringLayout.Constraints class stores the constraint and which is used to manage the position and size of the component with the use of 'SpringLayout'. This object is also sued for the manipulation of the edges referred as east, south, north and west by using the 'constraint property'.

[kelfro]

Hi,

Following is the some part of java program code which will demonstrate you the use of SpringLayout.Constraints class:

StringBuilder sb1 = new StringBuilder();

SpringLayout.Constraints constraints = lm1.getConstraints( (Component)comp );

Spring spring1 = constraints.getConstraint( SpringLayout.EAST );

System.out.println( spring1.toString());

ByteArrayOutputStream baos1 = new ByteArrayOutputStream();

[Zecho]

The SpringLayout.Constraints class comprises four constructor in the way to handle the SpringLayout properties, see below:

• SpringLayout.Constraints(Spring xh, Spring yh, Spring width1, Spring height1)
• SpringLayout.Constraints()
• SpringLayout.Constraints(Spring xh, Spring yh)
• SpringLayout.Constraints(Component cp)

[Reegan]

There are number of methods of SpringLayout.Constraints class and which are useful to manages it's layout behavior:

1. getHeight()
2. getWidth()
3. setX(Spring xb)
4. setConstraint(String Nameofedge, Spring sb)
5. setY(Spring yb)
6. setHeight(Spring height)
7. getConstraint(String Nameofedge)

[opaper]

Please refer following code for SpringLayout.Constraints class:

{
private SpringLayout.Constraints firstRowItemConstrant = null;
private SpringLayout.Constraints prevRowItemConstrant = null;
public SpringFormBuilder() 
{
this(new JPanel1());
}
public SpringFormBuilder(JPanel panel1) 
{
this.panel1 = panel1;

}
}