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Oleg B
3,612 PointsWhat is the purpose of < = "Yoda">?
Here are two blocks of code:
public class PezDispenser {
private String mCharacterName;
public PezDispenser(String nameOfCharacter) {
mCharacterName = nameOfCharacter;
}
public String getCharacterName() {
return mCharacterName;
}
}
AND
public class PezDispenser {
private String mCharacterName = "Yoda";
public PezDispenser(String nameOfCharacter) {
mCharacterName = nameOfCharacter;
}
public String getCharacterName() {
return mCharacterName;
}
}
Does < = "Yoda"> play any role in the code? The code runs without < = "Yoda">.
3 Answers
Alex Garcia
6,374 Pointsthe difference is the bottom code will keep returning "yoda" because it is the fixed mCharacterName. But in the top code where mCharacterName isn't defined you have the capability to change it to whatever you want. In the video when he changes the code in Example.java; the line of code that says: PezDespenser dispenser = new Pezdespenser("donatello"); It allows us to change the name to donatello; but if the user wanted something else like spongebob, mickey etc. we would have the capability to do it. Hope it helps!
kabir k
Courses Plus Student 18,036 PointsIn the 1st example, the private field, mCharacterName, is declared but not set or initialized. So upon creating or instantiating a PezDispenser object, the PezDispenser constructor (which has the same name as its class) will require you to pass in an String argument. But this way you change or modify mCharacterName value to any character name that you want (at the instantiation of the PezDispenser class)
In the 2nd example, you've declared and initialized a value for the private member variable, mCharacterName. This way, you've hardcoded the mCharacterName value to "Yoda"
Hope that helps.
Reid Davis
5,140 PointsThere's very little difference by the end of those two code blocks.
In the first block of code, without [ = "Yoda" ], the mCharacterName property has no value, is undefined, until the object constructor assigns it the value of 'nameOfCharacter'.
In the second code block, the mCharacterName briefly has a value of "Yoda" before it is overwritten by the object constructor assigning it the value of 'nameOfCharacter'.