"this" is a Java keyword that references the current object. Any part of the object(instance variables, methods, constructors) can be accessed by calling this.[member].
No, 'check' is not a keyword in java language.
sizeof is not a keyword in Java but many classes have size() or length() methods, which can mean the number of elements, characters, etc. depending on the class.
yes, float is keyword and data type in java
"verify" is not a Java keyword. I believe the link, in related links, has the complete list of Java keywords.
There is no "foreign" keyword in Java, however, there is a native keyword that declares native methods in a native language, such as C or C++.For full list of keywords in Java see related question.
Literal in java are L, F, null, true, false These act as keyword(have special meaning in java) but these does'nt comes under the category of Java Keyword.
"int" is the keyword for integer
In Java, the final keyword specifies that the object created cannot be further redefined or derived.
new is a keyword to create a instance of object any class.
we do it using the throw keyword.
An interface in Java is like an abstract class, but there are no method bodies allowed in it and it has to be declared with the interface keyword. It is Java's way of getting around the Deadly Diamond of Death. Only abstract methods and constants are allowed in it.
No extern keyword in Java.