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How to get a column element from an Instance variable ArrayList

d873d057-8b2e-49e4-a962-aabfa165df4dApr 23 2017 — edited Apr 23 2017

I have created a two dimensional ArrayList by inserting one row at a time.  Now I need to find the max value of one column and perform some operations on it and then apply these operations to the other rows in another column.  Is this possible?  I have been Google'ing and Bing'ing for a week now and nothing seems to work.  The array is an Instance variable.

Comments

gimbal2
In stead of posting that "A" security exception occurs, post the exact security exception that occurs including the full stacktrace.
1006132
Here's the stacktrace:

Match: digest selected JREDesc: JREDesc[version 1.5+, heap=-1--1, args=null, href=http://java.sun.com/products/autodl/j2se, sel=false, null, null], JREInfo: JREInfo for index 0:
platform is: 1.7
product is: 1.7.0_21
location is: http://java.sun.com/products/autodl/j2se
args is:
native platform is: Windows, x86 [ x86, 32bit ]
JavaFX runtime is: JavaFX 2.2.21 found at C:\Program Files\Java\jre7\
enabled is: true
registered is: true
system is: true

Match: ignoring maxHeap: -1
Match: ignoring InitHeap: -1
Match: digesting vmargs: null
Match: digested vmargs: [JVMParameters: isSecure: true, args: ]
Match: JVM args after accumulation: [JVMParameters: isSecure: true, args: ]
Match: digest LaunchDesc: null
Match: digest properties: []
Match: JVM args: [JVMParameters: isSecure: true, args: ]
Match: endTraversal ..
Match: JVM args final:
Match: Running JREInfo Version match: 1.7.0.21 == 1.7.0.21
Match: Running JVM args match: have:<> satisfy want:<>
java.lang.reflect.InvocationTargetException
at java.awt.EventQueue.invokeAndWait(Unknown Source)
at java.awt.EventQueue.invokeAndWait(Unknown Source)
at javax.swing.SwingUtilities.invokeAndWait(Unknown Source)
at com.sun.deploy.uitoolkit.impl.awt.AWTAppletAdapter.init(Unknown Source)
at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.InternalError: cannot create instance of org.bouncycastle.jce.provider.symmetric.AESMappings : java.security.AccessControlException: access denied ("java.security.SecurityPermission" "putProviderProperty.BC")
at org.bouncycastle.jce.provider.BouncyCastleProvider.loadAlgorithms(Unknown Source)
at org.bouncycastle.jce.provider.BouncyCastleProvider.<init>(Unknown Source)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$200(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
472695
Fwiw, I'm experiencing the same problem since update 21 (same stack trace).
1006132
Answer

It seems that from update 21 of JRE 7 the following lines are necessary in jnlp file when adding a BC provider:

<security>

   <all-permissions/>

</security>

Anyway, it solves our problem...

Marked as Answer by 1006132 · Sep 27 2020
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Locked on May 21 2017
Added on Apr 23 2017
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