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via Stack Overflow by homsii
, 1 year ago
This exception has no message.
java.lang.NullPointerException: 	at hospital.LogIn.jButton1ActionPerformed(LogIn.java:175)	at hospital.LogIn.access$200(LogIn.java:18)	at hospital.LogIn$3.actionPerformed(LogIn.java:76)	at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)