title: java.lang.ClassCastException: java.lang.Float cannot be cast to java.lang.String
body: <pre><code>java.lang.ClassCastException: java.lang.Float cannot be cast to java.lang.String
  </code></pre>
  
  <p>I am getting this exception in follwing code: </p>
  
  <pre><code>String colValue= (String)data_ForSave.elementAt(r).get(ColValindex);
  </code></pre>
  
  <p>Where <code>ForSave</code> is a vector of String containing table values, I can not understant why this exception is thrown.</p>
  
  <p>Below is the full Stack Trace of the excption. </p>
  
  <p><strong>Stack Trace Of Exception</strong> </p>
  
  <pre><code>java.lang.ClassCastException: java.lang.Float cannot be cast to java.lang.String
  at Utilities.Utility.DataHeaderMapping(Utility.java:1122)
  at jewelleryerpapplication.GUI.ProductsInformation.jbtnSaveActionPerformed(ProductsInformation.java:4222)
  at jewelleryerpapplication.GUI.ProductsInformation.access$1500(ProductsInformation.java:40)
  at jewelleryerpapplication.GUI.ProductsInformation$37.actionPerformed(ProductsInformation.java:3292)
  at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018)
  at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2341)
  at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
  at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
  at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
  at java.awt.Component.processMouseEvent(Component.java:6505)
  at javax.swing.JComponent.processMouseEvent(JComponent.java:3321)
  at java.awt.Component.processEvent(Component.java:6270)
  at java.awt.Container.processEvent(Container.java:2229)
  at java.awt.Component.dispatchEventImpl(Component.java:4861)
  at java.awt.Container.dispatchEventImpl(Container.java:2287)
  at java.awt.Component.dispatchEvent(Component.java:4687)
  at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4832)
  at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4492)
  at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4422)
  at java.awt.Container.dispatchEventImpl(Container.java:2273)
  at java.awt.Window.dispatchEventImpl(Window.java:2713)
  at java.awt.Component.dispatchEvent(Component.java:4687)
  at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:707)
  at java.awt.EventQueue.access$000(EventQueue.java:101)
  at java.awt.EventQueue$3.run(EventQueue.java:666)
  at java.awt.EventQueue$3.run(EventQueue.java:664)
  at java.security.AccessController.doPrivileged(Native Method)
  at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
  at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
  at java.awt.EventQueue$4.run(EventQueue.java:680)
  at java.awt.EventQueue$4.run(EventQueue.java:678)
  at java.security.AccessController.doPrivileged(Native Method)
  at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
  at java.awt.EventQueue.dispatchEvent(EventQueue.java:677)
  at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:211)
  at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:128)
  at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:117)
  at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:113)
  at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:105)
  at java.awt.EventDispatchThread.run(EventDispatchThread.java:90)
  Row   : 0
  </code></pre>
  
  <p>Lots of thanks in advance for providing an answer as i am stuck with that.</p>