PPT Slide

Why are Strings treated differently?

Strings are sometimes a special case of equivalency in Java. When the compiler encounters the lines:

String strHello1 = “Hello”;

String strHello2 = “Hello”;

the compiler is smart enough to know that the two Strings are identical. So, it decides it will save a few bytes of memory and point to the same location in memory. The same result would occur even if you wrote:

String strHello2 = “Hell” + “o”;

This means that for the above lines of code,

equals() and ‘==‘ both work:

System.out.println

(strHello1.equals(strHello2)); // true

System.out.println

(strHello1 == strHello2); // also true,

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