I tried to convert from println to printf, and this is what I got.
//*********************************Output File********************************* //Create a file with the information entered //and the information processed public void outputFile() throws IOException{ String payFileOutput=null; PrintWriter file= new PrintWriter("DataOutput.txt"); file.printf("Your total expenses per month are %10f\n", format.format(getTotalCost())); file.printf("Your college tuition is %10f\n", format.format(getTuition())); file.printf("Your rent is %10f\n", format.format(getRent())); if(pay==1) payFileOutput="Savings"; else if(pay==2) payFileOutput="Loans"; else if(pay==3) payFileOutput="Freelance Work"; else ; file.printf("Your payment method is %10f\n", payFileOutput); file.printf("Your amount entered for the payment method is %10f\n", format.format(getPayment())); if(totalCost<0){ file.printf("You still need: %5f per month\n", format.format(getTotalCost()));} else{ file.printf("\nYour budget seems good");} file.close(); } }
Exception in thread "AWT-EventQueue-0" java.util.IllegalFormatConversionException: f != java.lang.String at java.util.Formatter$FormatSpecifier.failConversion(Formatter.java:4011) at java.util.Formatter$FormatSpecifier.printFloat(Formatter.java:2738) at java.util.Formatter$FormatSpecifier.print(Formatter.java:2683) at java.util.Formatter.format(Formatter.java:2449) at java.io.PrintWriter.format(PrintWriter.java:878) at java.io.PrintWriter.printf(PrintWriter.java:777) at FinanceRev1.outputFile(FinanceRev1.java:173) at FinanceGUI$button2Listener.actionPerformed(FinanceGUI.java:286) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2012) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2335) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:404) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:253) at java.awt.Component.processMouseEvent(Component.java:6175) at javax.swing.JComponent.processMouseEvent(JComponent.java:3267) at java.awt.Component.processEvent(Component.java:5940) at java.awt.Container.processEvent(Container.java:2105) at java.awt.Component.dispatchEventImpl(Component.java:4536) at java.awt.Container.dispatchEventImpl(Container.java:2163) at java.awt.Component.dispatchEvent(Component.java:4362) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4461) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4125) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4055) at java.awt.Container.dispatchEventImpl(Container.java:2149) at java.awt.Window.dispatchEventImpl(Window.java:2478) at java.awt.Component.dispatchEvent(Component.java:4362) at java.awt.EventQueue.dispatchEvent(EventQueue.java:604) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:275) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:200) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:190) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:185) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:177) at java.awt.EventDispatchThread.run(EventDispatchThread.java:138)
Update : solution: the format of the number formatted the specified number to a string, and since I had% f (float), it was pretty obvious that I was getting a stack since you cannot reference the string float. Thanks to HydroKirby at MIrC.
user516541
source share