Why shouldn't I instantiate a string object using a constructor?

Question

In Java, it seems to be String s = "foo"preferable String s = new String("foo").

Why? Is a new string object created in both cases? Why does the first case exclude a constructor call?

+5

dangerChihuahua007 Jun 23 '12 at 23:16

4 answers

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+4

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+1

? ?

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String s = "foo";
String s2 = "foo";

s == s2 = > true

+1

John Earles Jun 23 '12 at 23:25

Oliver Charlesworth · Accepted Answer · 2012-06-23T23:17:43+0000

Why?

Since the second approach leads to two string objects (the original is due to the string literal plus an explicit copy).