java - Two string's which (I think) are identical do not return true when checking if the same -


this question has answer here:

i have 2 strings, 1 inputted user , 1 name of thread. inputted name should same thread. verify have program output

system.out.println("ds:" + deamonmain.threadnamefinal + "cn:" +getname());

which prints 

ds:thread-66cn:thread-66

now these appear same string. however, when have test validity of using 

boolean factchecker = deamonmain.threadnamefinal == getname(); system.out.println(factchecker);

it prints false...

why this? have getname()? how string different , why so?

you need use string.equals compare string equality, not == sign.

as in: 

boolean factchecker = deamonmain.threadnamefinal.equals(getname());

the == operator checks reference equality, while equals method checks equality of string values.

see here older thread on matter.


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