Get all display mode

Source code below will display all display mode in your computer include their width, height, refresh rate and bit depth.

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COMPLETE SOURCE CODE FOR : AllDisplayMode.java
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import java.awt.GraphicsEnvironment;
import java.awt.GraphicsDevice;
import java.awt.DisplayMode;

public class AllDisplayMode
{
public static void main(String[]args)
{
 GraphicsEnvironment ge=GraphicsEnvironment.getLocalGraphicsEnvironment();
 GraphicsDevice gd=ge.getDefaultScreenDevice();
 DisplayMode[]allDisplayMode=gd.getDisplayModes();

 int temp=0;

 while(temp<allDisplayMode.length)
 {
  System.out.println("DISPLAY MODE : "+(temp+1));
  System.out.println("Width : "+allDisplayMode[temp].getWidth()+" pixels");
  System.out.println("Height : "+allDisplayMode[temp].getHeight()+" pixels");
  System.out.println("Refresh rate : "+allDisplayMode[temp].getRefreshRate()+" Hz");
  System.out.println("BitDepth : "+allDisplayMode[temp].getBitDepth()+" bit");
  System.out.println("\n");
  temp=temp+1;
 }
}
}

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JUST COMPILE AND EXECUTE IT
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Source code to determine display mode for current screen can change or not using java

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COMPLETE SOURCE CODE FOR : DetermineDisplayModeCanChangeOrNot.java
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import java.awt.GraphicsEnvironment;
import java.awt.GraphicsDevice;

public class DetermineDisplayModeCanChangeOrNot
{
 public static void main(String[]args)
 {
  GraphicsEnvironment ge=GraphicsEnvironment.getLocalGraphicsEnvironment();
  GraphicsDevice gd=ge.getDefaultScreenDevice();
  
  //METHOD isDisplayChangeSupported() returns true if this GraphicsDevice  supports low-level display changes.
  boolean change=gd.isDisplayChangeSupported();
  
  if(change==true)
  {
   System.out.println("DISPLAY MODE CAN CHANGE");
  }
  
  else
  {
   System.out.println("DISPLAY MODE CANNOT CHANGE");
  }
 }
}

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JUST COMPILE AND EXECUTE IT
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