class BasicOfString{
	public static void main(String args[]){

	//char myArray = { 'w', 'e', 'l', 'c', 'o', 'm', 'e'};
	String firstString="welcome";

	//System.out.println(myArray);
	System.out.println(firstString);
	System.out.println(firstString.length());
	System.out.println(firstString.toUpperCase());
	System.out.println(firstString.toLowerCase());
	System.out.println(firstString.contains("come"));
	System.out.println(firstString+"to intershala");}}