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via Coderanch by Jay Orsaw, 1 year ago
This exception has no message.
via coderanch.com by Unknown author, 2 years ago
via Google Groups by Jan Bösenberg, 7 months ago
java.lang.NullPointerException: 	at javax.swing.ImageIcon.(Unknown Source)	at calculator.Calculator.CalculateActionPerformed(Calculator.java:479)	at calculator.Calculator.access$800(Calculator.java:22)	at calculator.Calculator$6.actionPerformed(Calculator.java:244)