Alertdialog box getting from every function

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Java

Android

AlertDialog

I want to show alertbox of particular selected checkbox using function this is my code

call.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                ListView mainListView = mDrawerList;
                checkbox = (CheckBox) mainListView.getChildAt(0).findViewById(R.id.checkBox1);
                checkbox1 = (CheckBox) mainListView.getChildAt(1).findViewById(R.id.checkBox1);
                checkbox2 = (CheckBox) mainListView.getChildAt(2).findViewById(R.id.checkBox1);
                checkbox3 = (CheckBox) mainListView.getChildAt(3).findViewById(R.id.checkBox1);
                for (int x = 0; x < mainListView.getChildCount(); x++) {
 
                    if (checkbox.isChecked()) {
                        getMain();
 
                    }
 
                    else if (checkbox1.isChecked()) {
                        second();
 
                    }
                    else if (checkbox2.isChecked()) {
                        third();
 
                    }
                    else if (checkbox3.isChecked()) {
                        fourth();
 
                    } else {
                        getMain();
 
                    }
                }
            }
        });

but there is 4 alertbox is displaying !!

What I have tried:

But when i calling single function without using checkbox

call.setOnClickListener(new OnClickListener(){
        public void onClick(View v) {
        // TODO Auto-generated method stub
            getMain();
        }

    });" 

Now only one alertbox is there