What is the difference between a constructor and an object?
A constructor is a special type of method that you use to create an instance of a class. An object is another name for an instance of a class. If you think of a Java source file as a plan or design for a component in a larger machine, when you call a class constructor it is like an instruction to the Java runtime system to say “make one of these”. The runtime system returns an object based on that design which you can use in your Java program. You can call a constructor as many times as you want to get multiple instances of an object, which each exist independently but can also have linked behaviour and properties. The Java statements in a constructor are intended to prepare a new object for the work it will do in a Java program. The constructor should ensure that the object has all necessary input arguments, configure itself for use and set up any linkages and dependencies with other Java objects. Actions: Follow-up or correct this answer. Submit a new question.
A constructor is a special type of method that you use to create an instance of a class. An object is another name for an instance of a class. If you think of a Java source file as a plan or design for a component in a larger machine, when you call a class constructor it is like an instruction to the Java runtime system to say “make one of these”. The runtime system returns an object based on that design which you can use in your Java program. You can call a constructor as many times as you want to get multiple instances of an object, which each exist independently but can also have linked behaviour and properties. The Java statements in a constructor are intended to prepare a new object for the work it will do in a Java program. The constructor should ensure that the object has all necessary input arguments, configure itself for use and set up any linkages and dependencies with other Java objects.
