java_lect_23.pdf

The Need for Eclipse ?Starting Off With Eclipse

Debugging In EclipseConclusion

An Introduction to Eclipse

Harsh Jain

Department of Computer ScienceIIT Bombay

17 March 2005

Harsh Jain Java Lecture

Whats NowWhat will change ?

Outline

1 The Need for Eclipse ?Whats NowWhat will change ?

2 Starting Off With EclipseLet us take offMaking your first Program

3 Debugging In EclipseBasics of Debugging

How do you program NOW ?

EditingCompilingRe EditingRepeatOk runningAgain repeatWell success

Is that it ?

In case you get out there are more issues . . .ReusabilityCode MaintainanceDocumentationEtc Etc

Outline

How will you program in Eclipse ?

Editing . . . with help from EclipseRunningDebuggingRunning

Let us take offMaking your first Program

Outline

Installation

Download Eclipse from www.eclipse.org. Unzip the zip file.Installed

Installation

Download Eclipse from www.eclipse.org. Unzip the zip file.Installed

A One Time Setup

Workspace UnderstandingPerspective UnderstandingViews Understanding

A One Time Setup

Outline

Writing the First Program

Specifications Take a Word as input and print some syntacticdetails i.e number of letters and number of spaces in the word.

Content AssistJava is not about learning big functions names. Its aboutusing them and using them well. Let eclipse do thelearning part and we do the using part

Is there a ?

Well there should be. How can we make a program withoutcompiling it ?Eclipse was doing it all the timeLets run it now

Is there a ?

2 Mins Break

Questions

Basics of Debugging

Outline

Basics of Debugging

Breakpoints

Breakpoints are like speedbreakers or pause buttons. You canpause your code at many places using breakpoints. Put themjudiciously to debug fast. It comes with practice.

Basics of Debugging

Breakpoints

Breakpoints are like speedbreakers or pause buttons. You canpause your code at many places using breakpoints. Put themjudiciously to debug fast. It comes with practice.

Basics of Debugging

Variables

What we are concerned is the value of variables at breakpoints.If we see anything wrong we can fix things fast (with practice).

Basics of Debugging

Variables

Basics of Debugging

Variables

The End

The only purpose of Eclipse is to increase the efficiency.Programmers should spend less time repeating stuff.Programmers should spend less time re writing code anddebugging.And its fun ofcourse :)

Questions Please

The End

Questions Please

The End

Questions Please

The End

Questions Please

The Need for Eclipse ?What's NowWhat will change ?

Starting Off With EclipseLet us take offMaking your first Program

Debugging In EclipseBasics of Debugging

Conclusion