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  Java, beyond the beans

[alijay110]

Beginner and Intermediate Java Programming help

Hi All, If anyone wants help on Java programming (Beginner & Intermediate), do give me a shout here, I'll get back to you guys as soon as possible. Happy Programming !

[alijay110]

Eclipse Shortcuts (Java IDE)

Editors are an integral part of a programmer’s life. If you have good proficiency in using an editor thats a great advantage. It comes very handy to debug. Traditional notepad and SOPs (System.out.println) are the way we start learning a language but that is not sufficient, so beginners start using an IDE and most importantly know the shortcuts.

For java developers there is a huge list and some popular areEclipse, Netbeans, IntelliJ Idea. I use Eclipse as my IDE and vim as a light weight editor.

This article is for those who use or intend to use Eclipse as IDE. Keyboard shortcuts are very important for comfortable and quick editing. I have abridged the following list of eclipse shortcuts from my own experience and literature.

There is a huge list of eclipse shortcuts available but I have listed only the most essential ones that you may need daily. Download this list as a pdf formatted for single page.

File Navigation – Eclipse Shortcuts

CTRL SHIFT R – Open a resource. You need not know the path and just part of the file name is enough.

CTRL E – Open a file (editor) from within the list of all open files.

CTRL PAGE UP or PAGE DOWN – Navigate to previous or next file from within the list of all open files.

ALT <- or ALT -> – Go to previous or next edit positions from editor history list.

Java Editing – Eclipse Shortcuts

CTRL SPACE – Type assist

CTRL SHIFT F – Format code.

CTRL O – List all methods of the class and again CTRL O lists including inherited methods.

CTRL SHIFT O – Organize imports.

CTRL SHIFT U – Find reference in file.

CTRL / – Comment a line.

F3 – Go to the declaration of the variable.

F4 – Show type hierarchy of on a class.

CTRL T – Show inheritance tree of current token.

SHIFT F2 – Show Javadoc for current element.

ALT SHIFT Z – Enclose block in try-catch.

General Editing – Eclipse Shortcuts

F12 – Focus on current editor.

CTRL L – Go to line number.

CTRL D – Delete a line.

CTRL <- or -> – Move one element left or right.

CTRL M – Maximize editor.

CTRL SHIFT P – Go to the matching parenthesis.

Debug, Run – Eclipse Shortcuts

CTRL . or , – Navigate to next or previous error.

F5 – Step into.

F6 – Step over.

F8 – Resume

CTRL Q – Inspect.

CTRL F11 – Run last run program.

CTRL 1 – Quick fix code.

Search – Eclipse Shortcuts

CTRL SHIFT G – Search for current cursor positioned word reference in workspace

CTRL H – Java search in workspace.