Change to string

Code:

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for (int i = 1; i <= 31; i++) {
      makePanel(i);
}

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Can I change i to a string? if yes how? :O

Code:

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String iString = String.valueOf(i);

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Or,

Code:

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String strString = Integer.toString(i);

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or

Code:

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String string = i + ""

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Quote:

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Originally Posted by senorbum

or

Code:

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String string = i + ""

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You may not realize it but that is quite an expensive way of obtaining the String equivalent of an int: the compiler creates a StringBuffer for you, appends both an empty String to it as well as the int which will be converted to a String first. Better use the String.valueOf( ... ) method.

kind regards,

Jos

Quote:

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Originally Posted by senorbum

or

Code:

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String string = i + ""

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For this is not a good approach, as JosAH says. Creation of additions resources in the code is not a good practice at all. Better to try avoid addition stuff as much as possible.

Quote:

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Originally Posted by Eranga

Better to try avoid addition stuff as much as possible. [/COLOR]

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you're right. consulting my "Effective Java Programming Language Guide" from J. Bloch he says

Quote:

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To achieve acceptable performance, use a StringBuffer in place of a String to store the statement under construction:

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and suggests this code

Code:

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public String statement() {
StringBuffer s = new StringBuffer(numItems() * LINE_WIDTH);
for (int i = 0; i < numItems(); i++)
s.append(lineForItem(i));
return s.toString();
}

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for string concatenation.

What are the tricky points you seen in that above code lol. I mean that I wonder is there any special reason to use separate/multiple methods to get values.