Java Swing/GUI Tutorial: Create a Password Field- Password Protecting Program

This tutorial will show you how to create a Password field in Java.

A password field can be useful if you only want certain users gaining access to some parts of your program. If you hide the source code or store the password in a different file, then the user cannot see the password by looking at your source code.

Category:

Education

Tags:

• Java
• Swing
• Pass
• Gui
• Tutorial
• Help
• password
• JPassword
• JPasswordField
• Frame
• Panel
• JFrame
• JPanel
• label
• JLabel

[enrichedd]

im having a problem when i use this in my program,

for some reason it wont show the controls on my program until i resize the window,

and the window is big enough for the controls. I think its something to do with the pack method cause i didnt use pack and when i do it gives me an error saying i cant use non-static method with static main, and when i try to call the pack method from another instance of the class it gives me same error, any ideas ne1? :)

[MrJavaHelp]

@enrichedd Hi, to fix this problem, simply add a line of code at the bottom of your program, just before the main method ends that says: frame.validate();

[danielgirotto]

Fucking unbelievable, going to implement this into my video game ASAP.

[Irvvn]

Oh fuck it. fuck java, fuck my carrer fuck everthing imma live in te woods D:

[JeboteBogNEMOZESE]

@Irvvn

I hope you actually did that, I'm thinking of doing the same!

[taumich97]

it doesn't show the insert space, it only shows the enter password, what did i miss?

[Knightmetal]

There's one line I don't understand, what does the part in parenthesis mean? "JPasswordField input = (JPasswordField) e.getSource();"

[rimidalv1111]

hey can u help me out? im a little new to java but i want to make a password protecting system for a program....if thy get pass right it opens program and if wrong it doesnt open program...i also want to know how to hide my sources for the game as i modded it and i dont want my mods to be leaked

[MsKhadijahCamille]

@Irvvn I had to sign in to comment on this LMBOOOOOOOOOO!!!! im in school tryna sneak on youtube and I read this. omg tooooo funny. looool.

[enrichedd]

@MrJavaHelp

hey thanks for the response, i ended up just taking the main method out and made a new instance containing the pack method

[Irvvn]

@enrichedd HAHAHA.... i know i was just having some hard time :D but i made it :D

[enrichedd]

thanks