Define and implement class Student. This class should contain the following fields: first name, last name, age, gpa, major, department. Age should be an integer value. GPA should be a floating point value. This class should also contain one attribute field of type Course. You might declare it as:private Course course;Important note: For simplicity of this exercise we are declaring and using a single Course object. Since most students take more than one class we would normally declare a collection that holds any number of Course objects. We will be covering Java collections later in the semester.

answer: when the substance contain the two parts (polar and non-polar) like soap.

explanation:

soap is produced from the basic hydrolysis of ester "saponification", it is considered as a salt of hydrocarbons. the soap molecule contains the two parts: a polar group   (-coo-na+) and a non-polar group (r-hydrocarbon part). the polar group is called the head and the tail is the non-polar group. the polar group is hydrophilic in nature (water loving) and the non-polar group is hydrophobic in nature (water repelling).the polar/non-polar nature of a substance is useful that it can dissolve the non-polar substances by the polar part and also can dissolve the polar substances by the non-polar part. it commonly used in detergents and soaps.

You aren't giving enough information. what kind of "tool" do you mean? if you want an opinion, then jeremy should use a computer to show how his web will look like.

The stage is the term for the background of the project, but can have scripts, backdrops