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Thread: concatenation of a string

  1. November 19th, 2022, 08:02 AM #1
    toubi
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    Default concatenation of a string

    a string created with String class is immutable but when we use the += operator
     String ch="hello"; ch+= "world";
    what happens in the memory it creates a new string? or change reference?
    another question why we don't use:
     for (int i=0;i<ch.length();i++) {System.out.println(ch[i]); }
    thank you
    Last edited by toubi; November 19th, 2022 at 12:10 PM.
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  2. November 19th, 2022, 09:00 AM #2
    AngleWyrm
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    Default Re: manipulation of a string 

    final String myImmutableString = "hello";
String ordinaryString = " world";
 
myImmutableString += ordinaryString;
    Quote Originally Posted by IDE
    The final local variable myImmutableString cannot be assigned. It must be blank and not using a compound assignment. Java(536870970)
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