Folge dem Video um zu sehen, wie unsere Website als Web-App auf dem Startbildschirm installiert werden kann.
Anmerkung: Diese Funktion ist in einigen Browsern möglicherweise nicht verfügbar.
init:
deps-jar:
compile-single:
run-single:
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at gui.GebundeneHochrechnung.tabellePruefen(GebundeneHochrechnung.java:703)
at gui.GebundeneHochrechnung.actionPerformed(GebundeneHochrechnung.java:550)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
at java.awt.Component.processMouseEvent(Component.java:6038)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3260)
at java.awt.Component.processEvent(Component.java:5803)
at java.awt.Container.processEvent(Container.java:2058)
at java.awt.Component.dispatchEventImpl(Component.java:4410)
at java.awt.Container.dispatchEventImpl(Container.java:2116)
at java.awt.Component.dispatchEvent(Component.java:4240)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4322)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3986)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3916)
at java.awt.Container.dispatchEventImpl(Container.java:2102)
at java.awt.Window.dispatchEventImpl(Window.java:2429)
at java.awt.Component.dispatchEvent(Component.java:4240)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:121)
public void tabellePruefen()
{
double inhaltx = 0, inhalty = 0;
int row = tableModel.getRowCount();
int i;
for (i = 0; i < row ; i++) {
if (tabelle.isEditing())
{
tabelle.getCellEditor(i,0).stopCellEditing();
}
String x = tableModel.getValueAt(i,1).toString();
String y = tableModel.getValueAt(i,2).toString();
if(x.length()==0 || y.length()==0)
{
JOptionPane.showMessageDialog(panelGebundeneHochrechnung, "Bitte alle Zellen der Tabelle ausfühlen!",
null, JOptionPane.ERROR_MESSAGE, null );
break;
}
inhaltx = Double.parseDouble(x.replace(',','.'));
inhalty = Double.parseDouble(y.replace(',','.'));
summex = summex + inhaltx;
summey = summey + inhalty;
}