Java BMICalculator does not work as expected
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I am learning to code in Java and I cannot figure out why this won't work. I will add screenshots It keeps returning NaN I think this means: not a number ... but it is a number? The Screenshots:Java code and What it returns
java
asked Nov 25 '18 at 3:41
Anon5Anon5
32
add a comment |
I am learning to code in Java and I cannot figure out why this won't work. I will add screenshots It keeps returning NaN I think this means: not a number ... but it is a number? The Screenshots:Java code and What it returns
java
asked Nov 25 '18 at 3:41
Anon5Anon5
32
1
Please do not post code as images.
– CS_noob
Nov 25 '18 at 3:53
I will copy and paste it next time instead, but using screenshots is easier. (-_-)
– Anon5
Nov 26 '18 at 5:15
add a comment |
I am learning to code in Java and I cannot figure out why this won't work. I will add screenshots It keeps returning NaN I think this means: not a number ... but it is a number? The Screenshots:Java code and What it returns
java
asked Nov 25 '18 at 3:41
Anon5Anon5
32
I am learning to code in Java and I cannot figure out why this won't work. I will add screenshots It keeps returning NaN I think this means: not a number ... but it is a number? The Screenshots:Java code and What it returns
java
java
asked Nov 25 '18 at 3:41
Anon5Anon5
32
asked Nov 25 '18 at 3:41
Anon5Anon5
32
asked Nov 25 '18 at 3:41
Anon5Anon5
32
asked Nov 25 '18 at 3:41
Anon5Anon5
32
asked Nov 25 '18 at 3:41
Anon5Anon5
32
32
1
Please do not post code as images.
– CS_noob
Nov 25 '18 at 3:53
I will copy and paste it next time instead, but using screenshots is easier. (-_-)
– Anon5
Nov 26 '18 at 5:15
add a comment |
1
Please do not post code as images.
– CS_noob
Nov 25 '18 at 3:53
I will copy and paste it next time instead, but using screenshots is easier. (-_-)
– Anon5
Nov 26 '18 at 5:15
1
1
Please do not post code as images.
– CS_noob
Nov 25 '18 at 3:53
Please do not post code as images.
– CS_noob
Nov 25 '18 at 3:53
I will copy and paste it next time instead, but using screenshots is easier. (-_-)
– Anon5
Nov 26 '18 at 5:15
I will copy and paste it next time instead, but using screenshots is easier. (-_-)
– Anon5
Nov 26 '18 at 5:15
add a comment |
4 Answers
4
active
oldest
votes
As per your program , you are calculating BMI way before expecting user input. Hence you are getting that output, i.e. you are calculating BMI for 0 value.
The actual way is calculate BMI i.e. execute BMI statement after accepting user input values.
answered Nov 25 '18 at 3:55
CS_noobCS_noob
4421313
add a comment |
- At the beginning the value of
hm = 0after evaluatingline 6 ,7 and 8
- Later when you use
hmto calculateBMIyou are doing a divide by 0 (becausehm = 0), which results inBMI = NaNwhich java uses to refer to (+)(-)infinity or indeterminate type of results. - Later you think that you're calculating the
BMIby assigning values tohmandhfbut no, you're just assigning values them and nothing else and then you just print it which results in whatever is inBMIbeing printed which isNaN
I'd advise you to go through an introductory programming course.
answered Nov 25 '18 at 3:58
RyotsuRyotsu
628514
add a comment |
Java is a programming language without lazy evaluation, so you shouldn't write "how the value are calculated" before they are assigned with the real value.
You are just allowed to assign value then calculate them.
answered Nov 25 '18 at 4:09
Geno ChenGeno Chen
2,81561125
add a comment |
place the following statements
double hm = (hm*12 + hi)/39.37;
double wkg = wp/2.205;
double BMI = wkg/(hm*hm);
after the statement
wp = keyboard.nextInt();
edited Nov 25 '18 at 15:23
LundinCast
2,91241526
answered Nov 25 '18 at 4:00
Priyadeep DattaPriyadeep Datta
192
add a comment |
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4 Answers
4
active
oldest
votes
4 Answers
4
active
oldest
votes
active
oldest
votes
active
oldest
votes
As per your program , you are calculating BMI way before expecting user input. Hence you are getting that output, i.e. you are calculating BMI for 0 value.
The actual way is calculate BMI i.e. execute BMI statement after accepting user input values.
answered Nov 25 '18 at 3:55
CS_noobCS_noob
4421313
add a comment |
As per your program , you are calculating BMI way before expecting user input. Hence you are getting that output, i.e. you are calculating BMI for 0 value.
The actual way is calculate BMI i.e. execute BMI statement after accepting user input values.
answered Nov 25 '18 at 3:55
CS_noobCS_noob
4421313
add a comment |
As per your program , you are calculating BMI way before expecting user input. Hence you are getting that output, i.e. you are calculating BMI for 0 value.
The actual way is calculate BMI i.e. execute BMI statement after accepting user input values.
answered Nov 25 '18 at 3:55
CS_noobCS_noob
4421313
As per your program , you are calculating BMI way before expecting user input. Hence you are getting that output, i.e. you are calculating BMI for 0 value.
The actual way is calculate BMI i.e. execute BMI statement after accepting user input values.
answered Nov 25 '18 at 3:55
CS_noobCS_noob
4421313
answered Nov 25 '18 at 3:55
CS_noobCS_noob
4421313
answered Nov 25 '18 at 3:55
CS_noobCS_noob
4421313
answered Nov 25 '18 at 3:55
CS_noobCS_noob
4421313
4421313
add a comment |
add a comment |
- At the beginning the value of
hm = 0after evaluatingline 6 ,7 and 8
- Later when you use
hmto calculateBMIyou are doing a divide by 0 (becausehm = 0), which results inBMI = NaNwhich java uses to refer to (+)(-)infinity or indeterminate type of results. - Later you think that you're calculating the
BMIby assigning values tohmandhfbut no, you're just assigning values them and nothing else and then you just print it which results in whatever is inBMIbeing printed which isNaN
I'd advise you to go through an introductory programming course.
answered Nov 25 '18 at 3:58
RyotsuRyotsu
628514
add a comment |
- At the beginning the value of
hm = 0after evaluatingline 6 ,7 and 8
- Later when you use
hmto calculateBMIyou are doing a divide by 0 (becausehm = 0), which results inBMI = NaNwhich java uses to refer to (+)(-)infinity or indeterminate type of results. - Later you think that you're calculating the
BMIby assigning values tohmandhfbut no, you're just assigning values them and nothing else and then you just print it which results in whatever is inBMIbeing printed which isNaN
I'd advise you to go through an introductory programming course.
answered Nov 25 '18 at 3:58
RyotsuRyotsu
628514
add a comment |
- At the beginning the value of
hm = 0after evaluatingline 6 ,7 and 8
- Later when you use
hmto calculateBMIyou are doing a divide by 0 (becausehm = 0), which results inBMI = NaNwhich java uses to refer to (+)(-)infinity or indeterminate type of results. - Later you think that you're calculating the
BMIby assigning values tohmandhfbut no, you're just assigning values them and nothing else and then you just print it which results in whatever is inBMIbeing printed which isNaN
I'd advise you to go through an introductory programming course.
answered Nov 25 '18 at 3:58
RyotsuRyotsu
628514
- At the beginning the value of
hm = 0after evaluatingline 6 ,7 and 8
- Later when you use
hmto calculateBMIyou are doing a divide by 0 (becausehm = 0), which results inBMI = NaNwhich java uses to refer to (+)(-)infinity or indeterminate type of results. - Later you think that you're calculating the
BMIby assigning values tohmandhfbut no, you're just assigning values them and nothing else and then you just print it which results in whatever is inBMIbeing printed which isNaN
I'd advise you to go through an introductory programming course.
answered Nov 25 '18 at 3:58
RyotsuRyotsu
628514
answered Nov 25 '18 at 3:58
RyotsuRyotsu
628514
answered Nov 25 '18 at 3:58
RyotsuRyotsu
628514
answered Nov 25 '18 at 3:58
RyotsuRyotsu
628514
628514
add a comment |
add a comment |
Java is a programming language without lazy evaluation, so you shouldn't write "how the value are calculated" before they are assigned with the real value.
You are just allowed to assign value then calculate them.
answered Nov 25 '18 at 4:09
Geno ChenGeno Chen
2,81561125
add a comment |
Java is a programming language without lazy evaluation, so you shouldn't write "how the value are calculated" before they are assigned with the real value.
You are just allowed to assign value then calculate them.
answered Nov 25 '18 at 4:09
Geno ChenGeno Chen
2,81561125
add a comment |
Java is a programming language without lazy evaluation, so you shouldn't write "how the value are calculated" before they are assigned with the real value.
You are just allowed to assign value then calculate them.
answered Nov 25 '18 at 4:09
Geno ChenGeno Chen
2,81561125
Java is a programming language without lazy evaluation, so you shouldn't write "how the value are calculated" before they are assigned with the real value.
You are just allowed to assign value then calculate them.
answered Nov 25 '18 at 4:09
Geno ChenGeno Chen
2,81561125
answered Nov 25 '18 at 4:09
Geno ChenGeno Chen
2,81561125
answered Nov 25 '18 at 4:09
Geno ChenGeno Chen
2,81561125
answered Nov 25 '18 at 4:09
Geno ChenGeno Chen
2,81561125
2,81561125
add a comment |
add a comment |
place the following statements
double hm = (hm*12 + hi)/39.37;
double wkg = wp/2.205;
double BMI = wkg/(hm*hm);
after the statement
wp = keyboard.nextInt();
edited Nov 25 '18 at 15:23
LundinCast
2,91241526
answered Nov 25 '18 at 4:00
Priyadeep DattaPriyadeep Datta
192
add a comment |
place the following statements
double hm = (hm*12 + hi)/39.37;
double wkg = wp/2.205;
double BMI = wkg/(hm*hm);
after the statement
wp = keyboard.nextInt();
edited Nov 25 '18 at 15:23
LundinCast
2,91241526
answered Nov 25 '18 at 4:00
Priyadeep DattaPriyadeep Datta
192
add a comment |
place the following statements
double hm = (hm*12 + hi)/39.37;
double wkg = wp/2.205;
double BMI = wkg/(hm*hm);
after the statement
wp = keyboard.nextInt();
edited Nov 25 '18 at 15:23
LundinCast
2,91241526
answered Nov 25 '18 at 4:00
Priyadeep DattaPriyadeep Datta
192
place the following statements
double hm = (hm*12 + hi)/39.37;
double wkg = wp/2.205;
double BMI = wkg/(hm*hm);
after the statement
wp = keyboard.nextInt();
edited Nov 25 '18 at 15:23
LundinCast
2,91241526
answered Nov 25 '18 at 4:00
Priyadeep DattaPriyadeep Datta
192
edited Nov 25 '18 at 15:23
LundinCast
2,91241526
edited Nov 25 '18 at 15:23
LundinCast
2,91241526
edited Nov 25 '18 at 15:23
LundinCast
2,91241526
2,91241526
answered Nov 25 '18 at 4:00
Priyadeep DattaPriyadeep Datta
192
answered Nov 25 '18 at 4:00
Priyadeep DattaPriyadeep Datta
192
answered Nov 25 '18 at 4:00
Priyadeep DattaPriyadeep Datta
192
192
add a comment |
add a comment |
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1
Please do not post code as images.
– CS_noob
Nov 25 '18 at 3:53
I will copy and paste it next time instead, but using screenshots is easier. (-_-)
– Anon5
Nov 26 '18 at 5:15