JFrame: get size without borders?

Question

In Java, is it possible to get the Width and Height of the JFrame without the title and other borders?

frame.getWidth() and frame.getHeight()1 seems to return the wi

Answer 1

This works fine

frame.getContentPane().getSize();

But not if you haven't added content yet. In my case, I wanted to calculate the inner dimensions of the JFrame before adding content, so I could divide up the content accordingly. Here's what I came up with.

Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();

pack(); // Need this, otherwise insets() show as 0.  
int scrW = (int)screenSize.getWidth();
int scrH = (int)screenSize.getHeight();
  int innerW = scrW - getInsets().left - getInsets().right;
  int innerH = scrH - getInsets().top - getInsets().bottom;

  // Need to setSize(), otherwise pack() will collapse the empty JFrame
  setSize(scrW, scrH);