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Explain the Rules for toString() Methods ?
toString() methods should return a single line of text that does not contain any carriage returns or linefeeds. toString() methods are primarily for debugging.toString() should not do a lot of fancy processing. toString() methods should be fast.
The string returned through toString() should contain the name of the class, and names and values of the fields which represent the state of the object, unless there are an excessive number of such fields, in that case only the most important should be returned.
A better Car toString() method would be: public String toString() { return "[Car: plate=" + this.licensePlate + " speed=" + this.speed + "; MaxSpeed=" + this.maxSpeed +"]"); }These rules are conventions, not needs of the language.
EJB elements operate inside a container environment and rely heavily on the container to give security. The four key services needed for the security are: 1. Identification :
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calculate the size of the tract of land by the size of an acre to get the number of acres.
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In Exercise 1 you were asked to modify the Sorts program so that it would output the number of swaps used by a sorting method. It is a little more difficult to have the program als
(Package Inheritance Hierarchy) Package-delivery services, such as FedEx®, DHL® and UPS®, offer a number of different shipping options, each with specific costs associated. Create
Write a program called Power that displays the positive powers of 2. When the user enters the exponent at a prompt, the program displays 2 to that power. The program halts when the
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What are the kinds of computer network according to the distance among nodes? The kinds of computer network according to the distance among nodes are: 1. LAN 2. WAN
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