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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.
Describe Overriding Methods ? Assume that one day you've just finished your Car class. It's been plugged into your traffic simulation that is chugging along merrily simulating
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List the Parentheses used in Java language? As usual here's the output: % javac FahrToCelsius.java % java FahrToCelsius 0 -17.7778 20 -6.66667 40 4.44444 60 15.5556 80 26.6667
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What is the difference between instance and object of a class? Few says both are same, then why java kept both the words for same thing?
There are four different parts by which autowiring can be done. ? byName ? constructor ? autodetect ? byType
Create an application for an animal-fur trimming service. The business is open 15 weeks of the year, from April through July. The fee for a small animal (under 6 pounds) is $100, a
Write a program of else statement in java? The else statement in Java // This is the Hello program in Java class Hello { public static void main (String args[]) { if (
explain jumps in loops and explain labelled loops
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