Read all of problem 1 before starting, hints are given throughout the

ISTE

121

Lab 03

GUI

Inner classes

and Binary

IO

Part

1: Inner Classes (

6

Points)

Overview

Read all of Problem 1 before starting, hints are given throughout the problem 

statement. 

See the Execution Examples, below, to see what the GUI should look like.

Fields and Behaviors:

GUI Component

Behavior

TextArea

Will hold the text being 

searched.

It needs to be updated 

when 

word is found.

This area is horizonta

l

l

y

and vertical

ly

scrollable.

TextField

Holds the word to be found

.

Find Button

Every time this bu

t

t

on is pressed, the 

first

occurrence of the 

“find” word in the TextArea will be located and highlighted. 

A

named inner

class.

Clear Button

Clears the TextField that holds the word to match. 

Sets the input focus to the ‘find’ text field.

This does NOT clear the text area.

An An

onymous inner class.

Windows close

Close using window listener/adapter inner class

, and print a 

“Thank you for using finder” message.

An Anonymous inner class.

Add a WindowListener using WindowAdapter class 

formatted similar to an

ActionListener.

Requirements:

1.

You need to develop your own inner classes to handle the events. 

You must 

handle the window clo

sing and button press events

.

2.

The search is case sensitive.

If the case of 

the letters in the word in the 

TextArea 

does not match exactly 

the word in the 

TextField, skip over it.

3.

You only need to locate the 

first

occurrence of a string of text.

Use ONE of the

string methods for this ‘find’ (look up the indexOf method of the Stri

ng class).

4.

The Find

operation is able to find text

such as in 

this sentence

“this sentence” 

should be found.

NOTE: 

To get text 

into

the text area, simply copy text from another window and paste it 

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