byteRef.toString() == byteRef.toString() ?

[srilatha kareddy]

Byte b1 = new Byte("9");
if(b1.toString()==b1.toString())
System.out.println("true = "+(b1.hashCode()));
else
System.out.println("false = "+(b1.hashCode()));

o/p is true 9

Byte b1 = new Byte("11");
if(b1.toString()==b1.toString())
System.out.println("true = "+(b1.hashCode()));
else
System.out.println("false = "+(b1.hashCode()));

o/p is false 11


Please explain this
[ February 17, 2006: Message edited by: s reddy ]

[steven gerrard]

i just compiled it its coming false in both the cases

[Henry Wong]

It depends on the JVM. Up to JDK 1.4, values from "-3" to "10" was cached -- meaning it will return the same string reference for same values, in this range. After JDK 1.4, it will return a new string everytime. (BTW, not exactly sure when it switched over)

Regardless, this is more reason to use equals() to compare strings.

Henry

[srilatha kareddy]

thanks for reply.