java.lang.NullPointerException

Coderanch | Talhah Mafawalla | 1 decade ago
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  1. 0

    Help with DefaultTableModel

    Coderanch | 1 decade ago | Talhah Mafawalla
    java.lang.NullPointerException
  2. 0

    Using vectors after extending on AbstractTableModel

    Coderanch | 1 decade ago | Talhah Mafawalla
    java.lang.NullPointerException

    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at ordermanagementsystem.OrderForm$MyTableModel.getRowCount()
    2. ordermanagementsystem
      OrderForm$MyTableModel.getRowCount
      1. ordermanagementsystem.OrderForm$MyTableModel.getRowCount(OrderForm.java:156)
      1 frame
    3. Java RT
      DefaultTableModel.<init>
      1. javax.swing.table.DefaultTableModel.setDataVector(DefaultTableModel.java:198)
      2. javax.swing.table.DefaultTableModel.<init>(DefaultTableModel.java:98)
      3. javax.swing.table.DefaultTableModel.<init>(DefaultTableModel.java:80)
      4. javax.swing.table.DefaultTableModel.<init>(DefaultTableModel.java:60)
      4 frames
    4. ordermanagementsystem
      OrderForm.main
      1. ordermanagementsystem.OrderForm$MyTableModel.<init>(OrderForm.java:139)
      2. ordermanagementsystem.OrderForm.<init>(OrderForm.java:76)
      3. ordermanagementsystem.OrderForm.main(OrderForm.java:131)
      3 frames