You can declare an array in Java in 3 different ways.
Sample Java
int[] myArr = new int[5];
int[] myArr = {1,2,3,4,5};
int[] myArr = new int[]{1,2,3,4,5};
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How to iterate throug a map in Java
To iterate throug a map in Java you can use the snippet below.
for (Map.Entry<String, Object> entry : mp.entrySet()) {
String key = entry.getKey();
Object value = entry.getValue();
}
How to download a website source in Java
To download a website source in Java you can use the following snippet.
Sample Java
private static String getUrlSource(String url) throws IOException {
URL website = new URL(url);
URLConnection connection = website.openConnection();
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(connection.getInputStream(), "UTF-8"));
String input;
StringBuilder strBuilder = new StringBuilder();
while ((input = bufferedReader.readLine()) != null){
strBuilder.append(input);
}
bufferedReader.close();
return strBuilder.toString();
}