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Basic questions about JAVA Applet development

Question asked by Priyanka Priyadarshini on Dec 12, 2019
Latest reply on Dec 20, 2019 by Jonathan Iglesias
This question is just to get some theoretical knowledge about writing a JAVA Applet.
I have worked on NXP SE050 smart card which already had a JCOP 4, Java applet installed on it.So I have an idea how do we communicate with smart card using this applet.
But now I need to write a new java applet for my smart card (NXP A7006) which just has JCOP 2.4.2 installed on it.
I am new to JAVA Applet development for JAVA cards. Can someone please guide me briefly about the procedure we must follow.
I have few questions like: 
1. The datasheet of my smart card says it has JCOP(Java Card Open Platform) 2.4.2 installed on it. So do I need to use this JCOP operating system to write JAVA Applet for my smart card? 
2. Is there any tool which I should use to write JAVA Applet? 
I would be grateful if someone can help me out in this.
Thank you!