Joop Eggen questions

Joop Eggen answers

• Can't figure out the correct type for a HashMap
• How to completely remove an icon from JDialog?
• List to varargs with pre-defined size or without size
• Divide the bigdecimal value in a list of object using java 8?
• Inverting bits of binary string java
• Deleting last new line string
• Check if an arraylist contains two strings
• How to maintain JAVA projects irrespective of IDE (Netbeans and Eclipse)
• JAVA How to align text in JTextArea regardless of length of characters
• Making sure a string repr of decimal number is always n characters long