Programming and Problem Solving with Java

Knowledge Goals

• To understand the relationship of a JFrameto its content pane and the
  objects it contains


• To understand the Java event-handling model


• To learn the different parts of an event loop


• To understand how an event handler can receive events from multiple sources

Skill Goals

To be able to:

• Construct a code segment that creates a JFramewindow on the screen


• Use a JLabelobject to display a message in a JFrameon the screen


• Use a layout manager to organize labels in a window


• Write an event handler for a single button


• Register an event handler with a button


• Write an event loop using a button


• Use a JTextFieldto input a value


• Group user interface objects together with a JPanel


• Write an event handler that distinguishes among multiple event sources

Event-Driven Input

and Output

1968
A NATO Science
Committee
introduces the term
“software
engineering”

1968

Edsger Dijkstra

advocates for

reliable software

with a letter citing

the weaknesses of

the Go To statement

1968

Integrated circuits

debut in computers

1968

The Federal

Information

Processing Standard

promotes the

YYMMDD standard

for the date, setting

the stage for the

Y2K problem

1968

Intel Corporation is

established by

Robert Noyce, Andy

Grove, and Gordon

Moore

1969

ARPANET, the

precursor to the

Internet, is

commissioned by

the US Department

of Defense