Code example for Polygon

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package com.example.runspyrun; 
 
import java.io.BufferedWriter; 
import java.io.File; 
import java.io.FileWriter; 
import java.io.IOException; 
import java.io.OutputStream; 
import java.util.HashMap; 
import java.util.List; 
import java.util.Vector; 
import java.io.FileOutputStream; 
 
import android.os.Bundle; 
import android.os.Environment; 
import android.support.v4.app.FragmentActivity;