<?xml version="1.0" encoding="UTF-8"?>
<zk>
	<window id="win" title="Window ZK Checkboxes" border="normal" width="800px" height="600px" 
    		apply="org.zkoss.bind.BindComposer" viewModel="@id('vm') @init('pkg$.CheckVM')">
    	<vlayout id="winA" width="100%" children="@load(vm.listModel)">
   			<template name="children">
	    		<hlayout row="@ref(each)" width="100%" children="@load(row.labels)">
	    			<template name="children">
	    				<checkbox label="@init(each)" onClick="@command('check_click')"
	    						  checked="@load(row.states[forEachStatus.index]) @save(row.states[forEachStatus.index], after='check_click')"/>
	    			</template>
	    		</hlayout>
    		</template>
	   	</vlayout>
    </window>
</zk>

import org.zkoss.zk.ui.*;
import org.zkoss.zk.ui.event.*;
import org.zkoss.zk.ui.util.*;
import org.zkoss.zk.ui.ext.*;
import org.zkoss.zk.au.*;
import org.zkoss.zk.au.out.*;
import org.zkoss.zul.*;
import org.zkoss.bind.annotation.Command;

public class CheckVM 
{
    ListModelList< Val > lm_= new ListModelList< Val >();
    // hold checkbox state and label for one row.
    public class Val
    {
        public Val(Boolean[] boxes)     
        { 
            boxes_= boxes; 
            labels_= new ListModelList();   for (int i= 0; i< boxes_.length; ++i) labels_.add("Checkbox "+ i);
        }

        public Boolean[] getStates()                    { return boxes_; }
        public ListModel getLabels()                    { return labels_; }

        Boolean[] boxes_= null;
        ListModelList< String > labels_;
    }

    public CheckVM()
    {
        lm_.add(new Val(new Boolean[] { Boolean.TRUE, Boolean.FALSE, Boolean.FALSE, Boolean.TRUE }));
        lm_.add(new Val(new Boolean[] { Boolean.FALSE, Boolean.FALSE, Boolean.TRUE, Boolean.TRUE }));
    }

    @Command
    public void check_click()           {}
    public ListModel getListModel()     { return lm_; } 
}