How do comparison operators differ from the 'is' operator in Java?

In Java, there is no Is operator as a separate comparison operator. The question might be about the instanceof operator and comparison operators.

Main comparison operators in Java:

• == — checks if primitive values are equal or if two variables reference the same object.
• .equals() — method for checking logical equality of objects (can be overridden).

The instanceof operator is used to check if an object is an instance of a specific class or implements an interface:

if (obj instanceof String) {
    // obj is a String or a subclass of String
}

Summary:

• Comparison operators (==, .equals()) compare values or objects.
• instanceof checks the type of the object.

Example:

String a = "test";
String b = new String("test");

System.out.println(a == b); // false, different objects
System.out.println(a.equals(b)); // true, same content

Object obj = a;
System.out.println(obj instanceof String); // true

If the question referred to a different language or context, please clarify.