borter的博客

public void paint(Graphics g) { Graphics2D g2d = (Graphics2D)g; // Use a predefined color g2d.setColor(Color.red); // Draw shapes...; see e586 Drawing Simple ...

public void paint(Graphics g) { Graphics2D g2d = (Graphics2D)g; Color startColor = Color.red; Color endColor = Color.blue; // A non-cyclic gradient ...

The Color class contains a number of predefined colors such as red and green. This example demonstrates how to retrieve one of these predefined colors using a string. For example, the predefined color...

// See e575 The Quintessential Drawing Program public void paint(Graphics g) { Graphics2D g2d = (Graphics2D)g; // Draw background... // Set alpha. 0.0f is 1...

A component fires a component event after it is made visible, hidden, moved, or resized. // Create a listener for component events ComponentListener listener = new ComponentAdapter() { ...

A container holds one or more child components. A container has a layout that determines how the child components are arranged within the container. This example creates a frame with a text area in th...

A container fires a container event whenever a component is added or removed. // Create a listen for container events ContainerListener listener = new ContainerAdapter() { public v...

This example retrieves all of a container's children in an array: // Get children Component[] components = container.getComponents(); for (int i=0; i<components.length; i++) {...