Iam unable to run the java program in eclipse

Question

Iam getting the below error.

at org.eclipse.jdt.debug.ui.launchConfigurations.JavaApplicationLaunchShortcut.findTypes(JavaApplicationLaunchShortcut.java:165)

at org.eclipse.jdt.debug.ui.launchConfigurations.JavaLaunchShortcut.searchAndLaunch(JavaLaunchShortcut.java:115)

at org.eclipse.jdt.debug.ui.launchConfigurations.JavaLaunchShortcut.launch(JavaLaunchShortcut.java:281)

at org.eclipse.debug.internal.ui.launchConfigurations.LaunchShortcutExtension.launch(LaunchShortcutExtension.java:430)

at org.eclipse.debug.internal.ui.actions.LaunchShortcutAction.runInternal(LaunchShortcutAction.java:88)

at org.eclipse.debug.internal.ui.actions.LaunchShortcutAction.runWithEvent(LaunchShortcutAction.java:135)

at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:579)

at org.eclipse.jface.action.ActionContributionItem.lambda$4(ActionContributionItem.java:413)

at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89)

at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4175)

at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1057)

at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1081)

at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1066)

at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:780)

at org.eclipse.jface.action.ActionContributionItem.lambda$8(ActionContributionItem.java:1247)

at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89)

at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4175)

at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1057)

at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3988)

at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3587)

at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1160)