JAVA return unexpected boolean result from method

Question

Why the following method always return false for the below value. Do I confuse with somethings??

public boolean isTwoWay(Detail detail) {
    return (detail.isExchange && detail.isTwoWay && !detail.isIVR);
}

which data contain following

detail.isExchange =  true;
detail.isTwoWay = true;
detail.isIVR = false;

but it return false instead of true

Are those boolean variables static? Your initialization of the form Detail.isExchange = true; implies they are static (unless it's a typo). — Eran
– Eran, Commented Oct 9, 2015 at 5:44
Your code is. . . confusing. Detail.isExchange is apparently being set as a static variable in the Detail class. And then you are calling detail.isExchange() as a method? Perhaps show a bit more code here. — CollinD
– CollinD, Commented Oct 9, 2015 at 5:45

janos · Accepted Answer · 2015-10-09 05:55:50Z

1

The only way the method will return false is if one of your assumptions is wrong:

detail.isExchange =  true;
detail.isTwoWat = true;
detail.isIVR = false;

Rest assured, this kind of oversight happens to programmers all the time, including the best of us.

Put a breakpoint where you receive false instead of your expected true, and verify your assumptions.

answered Oct 9, 2015 at 5:55

janos

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Comments

Shiladittya Chakraborty · Accepted Answer · 2015-10-09 06:06:31Z

0

I have tried with that and its print true always.

boolean isExchange =  true;
boolean isTwoWay = true;
boolean isIVR = false;

System.out.println(isExchange && isTwoWay && !isIVR);

answered Oct 9, 2015 at 6:06

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