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Thread: Bug in Java ?? substring( int x, int y)

  1. #1
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    Default Bug in Java ?? substring( int x, int y)

    Hi Guys,

    This simple code returns "Not Iqual" but should return "Iqual" the test is very simple str1 = "AAAA"; str2="AA"; str3=str1.substring(0,2)

    Printing:
    str1="AAAA"
    str2="AA"
    str3="AA"

    The comparison between str2 with str3 returns different. (Where is the error ? Or bug ??)

    I'm using Netbeans 7.3 and JDK 1.7.0.17

    Thanks

    Fallow Code


    public class String01 {
    public static void main(String[] args) {
    String str1 = "AAAA";
    String str2 = "AA";
    String str3 = str1.substring(1, 2);

    System.out.println(str1);
    System.out.println(str2);
    System.out.println(str3);

    if (str2 == str3) {
    System.out.println("Iqual");
    } else {
    System.out.println("Not Iqual");
    }
    }


  2. #2
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    Default Re: Bug in Java ?? substring( int x, int y)

    u can use .equals operator to equal the two strings
    == operator not working properly in the case of string
    you write if(str2.equals(str3))

  3. #3
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    Default Re: Bug in Java ?? substring( int x, int y)

    thanks

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