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    public class MouseController
    {
        [DllImport("User32", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
        public static extern void mouse_event(uint dwFlags, uint dx, uint dy, uint cButtons, UIntPtr dwExtraInfo);

        private const int MOUSEEVENTF_LEFTDOWN = 0x02;
        private const int MOUSEEVENTF_LEFTUP = 0x04;
        private const int MOUSEEVENTF_RIGHTDOWN = 0x08;
        private const int MOUSEEVENTF_RIGHTUP = 0x10;

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        // Create the callback method
        delegate Boolean checkIfMoveToUploadedFolderCallback();

        // define the method to be called
        private Boolean checkIfMoveToUploadedFolder()
        {
            // check control property InvokeRequired
            if (cb_moveToUploadedFolder.InvokeRequired)
            {
                // create an instance of the delegate with this method's name

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        delegate void updateDateTimePickerCallback(int t);

        private void updateDateTimePicker(int t)
        {
            if (dateTimePicker1.InvokeRequired)
            {
                updateDateTimePickerCallback s = new updateDateTimePickerCallback(updateDateTimePicker);
                this.Invoke(s, new object[] { t });
            }
            else

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<button type="button" class="btn btn-default btn-xs" onclick="htmlEncode()" title="encode">HTML encode</button>
<button type="button" class="btn btn-default btn-xs" onclick="htmlDecode()" title="encode">HTML decode</button>
 <br/>
        <textarea id="encodedecode" cols="80" rows="10"></textarea>
         <script>
         function htmlEncode(){
            var encoded = $("#encodedecode").val().replace(/&/g, '&amp;')
                                                   .replace(/</g, '&lt;')
                                                   .replace(/>/g, '&gt;')
                                                   .replace(/"/g, '&quot;')

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<button type="button" class="btn btn-default btn-xs" onclick="guid()" title="generate a random guid">Generate Random Guid</button>
<br/>
<textarea id="guidtxt" cols="60"></textarea>
<script>
        function guid() {
             var guid = 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {var r = Math.random()*16|0,v=c=='x'?r:r&0x3|0x8;return v.toString(16);});
             $("#guidtxt").val(guid);
             $("#guidtxt").select();
        }
</script>

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jQuery('a').attr("target", "_blank");

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1. What is the difference between '==' and .equals()?

2. Is java pass-by-value or pass-by-reference?

3. What is the difference between checked and unchecked exceptions?

4. What is an abstract class and when would you use it?

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.replace(/\.?0+$/, '')

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Run these fun commands in the console:

• parseFloat('100000.618033988757')

• 10000000000000000 === 10000000000000001

• .2 + .1

• 5508402744232713000 + 10

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The following example shows how by disable the USE_TRANSIENT_ANNOTATION feature, you can include @Transient pojo fields in your serialized json responses.

Application.java

@SpringBootApplication
public class Application {

    ...

    @Bean