java - Get plots from CombinedDomainXYPlot (and remove them) -

is there way plot list added combineddomainxyplot if don't keep references them?

i'd there plots, work them , possibly remove them compined plot.

this example code adding plots combineddomainxyplot:

// axis dateaxis domainaxis = new dateaxis("date");  // plot container combineddomainxyplot plotcombined = new combineddomainxyplot(domainaxis);  // plot 1 xyplot plot1 = new xyplot(); plot1.setdomainaxis(domainaxis); plotcombined.add(plot1);  // plot 2 xyplot plot2 = new xyplot(); plot2.setdomainaxis(domainaxis); plotcombined.add(plot2); 

update 1:

i've tried code doesn't return plots. it's not reliable.

for (object sp : plotcombined.getsubplots()) {     plotcombined.remove((xyplot)sp); } 

it method of removing plots correct?

full example code:

import javax.swing.jframe; import org.jfree.chart.axis.dateaxis; import org.jfree.chart.plot.combineddomainxyplot; import org.jfree.chart.plot.xyplot;   public class sample27 extends jframe {      public sample27()  {         super("sample27");          // axis         dateaxis domainaxis = new dateaxis("date");          // plot container         combineddomainxyplot plotcombined = new combineddomainxyplot(domainaxis);          // plot 1         xyplot plot1 = new xyplot();         plot1.setdomainaxis(domainaxis);         plotcombined.add(plot1);          // plot 2         xyplot plot2 = new xyplot();         plot2.setdomainaxis(domainaxis);         plotcombined.add(plot2);          system.out.println("plot count before: " + plotcombined.getsubplots().size());         (object sp : plotcombined.getsubplots()) {             system.out.println("removing subplot: " + sp);             plotcombined.remove((xyplot)sp);         }         system.out.println("plot count after: " + plotcombined.getsubplots().size());            }      public static void main(string[] args) {         new sample27();     }     } 

output:

plot count before: 2 removing subplot: org.jfree.chart.plot.xyplot@15615099 plot count after: 1 

getsubplots returns list containing items - list copy standpoint uses collections.unmodifiablelist, returns new list backed original. iterate on list, items in fact being removed underlying list, affecting iteration on collection.

rather rely on iteration (eg for (object sp : plotcombined.getsubplots())), loop on array backwards , use index remove item.

for ( int = plotcombined.getsubplots().size() - 1; >= 0; i-- ){     plotcombined.remove((xyplot)plotcombined.getsubplots().get(i)); }