Check if a variable is between two numbers with Java

Question

I have a problem with this code   if  90  gt  gt   angle   lt  lt  180    The error explanation is      The left-hand side of an assignment must be a variable    I understand what this means but how do I turn the above code into correct code

User · Answer

You can use apache Range API  https   commons apache org proper commons-lang apidocs org apache commons lang3 Range html

User · Answer

I see some errors in your code  Your probably meant the mathematical term   90  lt   angle  lt   180  meaning angle in range 90-180   if  angle  gt   90  amp  amp  angle  lt   180        do action

User · Answer

Assuming you are programming in Java  this works   if  90  gt   angle   amp  amp   angle  lt   180         don t you mean 90 is less than angle  If so  90  lt   angle

User · Answer

public static boolean between int i  int minValueInclusive  int maxValueInclusive        if  i  gt   minValueInclusive  amp  amp  i  lt   maxValueInclusive          return true      else         return false      https   alvinalexander com java java-method-integer-is-between-a-range

User · Answer

are you writing java code for android  in that case you should write maybe   if  90  gt   angle  amp  amp  angle  lt   180      updating the code to a nicer style  like some suggested  you would get   if  angle  lt   90  amp  amp  angle  lt   180      now you see that the second check is unnecessary or maybe you mixed up  lt  and  gt  signs in the first check and wanted actually to have  if  angle  gt   90  amp  amp  angle  lt   180

User · Answer

lt  lt   is like     but for a left shift  x  lt  lt   1 means x   x  lt  lt  1   That s why 90     angle doesn t parse  And  like others have said  Java doesn t have an elegant syntax for checking if a number is an an interval  so you have to do it the long way  It also can t do if  x    0    1   and you re stuck writing it out the long way

User · Answer

If  x  is between  a  and  b           int m    a b  2   if Math abs x-m   lt    Math abs a-m        operations                have to use floating point conversions if the summ is not even   Simple example      if x is between 10 and 20  if Math abs x-15  lt  5

User · Answer

You can use this simply  I m using this function to check if the input int number is between 20 and 30     static boolean isValidInput int input        return  input  gt   20  amp  amp  input  lt   30

[java] Check if a variable is between two numbers with Java

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