What do the following functions return?

String x = "Vision";
String y = "2020";
System.out.println(x + y);

What do the following functions return?

String x = "Vision";
String y = "2020";
System.out.println(x.charAt(3));

Predict the output of the following Java program snippet:

String str1 = "Information Technology"; 
String str2 = "information technology"; 
boolean p = str1.equalsIgnoreCase(str2); 
System.out.println("The result is " + p);

What do the following functions return?

String x = "Vision";
String y = "2020";
System.out.println(x.equals(y));