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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.
JSP simply gives a Page which may contain markup, embedded Java code, and tags which encapsulate more complicated logic / html. JSF may use JSP as its template, but gives much more
1. Which of the following are not valid Java identifiers, and why? (a) wolVes (b) United(there is only one) (c) 87 (d) 5 3 (e) Real ale (f) isFound?by 2. A cla
What is Initializing Fields ? Fields can (and often should) be initialized while they're declared, just like local variables. class Car { String licensePlate = ""; // e.g
You have recently joined a games company. The SQA manager has given you the task of improving the code quality of simple games. This is a standard task which the SQA manager gives
You are part of a team creating a system to keep track of computer science books that a publisher is producing. Create a UML class diagram for a "computer science book". You must h
i) Set the number of data points to 20 and the number of clusters to 2. Check box Show History. Click on Initialize. Click on Start. Click on Step . Observe which points ch
a. Write an application for a video store. Place the names of 10 of your favorite movies in a combo box. Let the user select a movie to rent. Let the user select a movie to rent. D
Project Description: I need a Script developer who can make script for me. Need urgently. Skills required: Java, Facebook Marketing, Javascript, PHP, Script Install
A proxy is an object that is formed after applying advice to a target object. When you think of client objects the target object and the proxy object are the similar.
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