bad operand types for binary operator java

Question

The error shows this line    if   a 0   amp  1    0   amp  amp   a 1   amp  1   0   amp  amp   a 2   amp  1   0      This is the whole code    public class Ex4      public static void main String   args      int    a   new int  3     if args length    3            try          for int i   0  i  lt  args length  i                      a i    Integer parseInt args i                                catch NumberFormatException e               System out println  Wrong Argument                   if   a 0   amp  1    0   amp  amp   a 1   amp  1   0   amp  amp   a 2   amp  1   0            System out println  yes                else           System out println  no                else        System out println  Error                I ve fixed the code    if   a 0   amp  1     0  amp  amp   a 1   amp  1     0  amp  amp   a 2   amp  1     0     Was an issue with the brackets  updated for anyone in the future

User · Accepted Answer

has higher precedence than  amp   You might want to wrap your operations in    to specify how you want your operands to bind to the operators     a 0   amp  1     0    Similarly for all parts of the if condition

User · Answer

You have to be more precise  using parentheses  otherwise Java will not use the order of operands that you want it to use   if   a 0   amp  1    0   amp  amp   a 1   amp  1   0   amp  amp   a 2   amp  1   0      Becomes  if    a 0   amp  1     0   amp  amp    a 1   amp  1     0   amp  amp    a 2   amp  1     0

User · Answer

Because  amp  has a lesser priority than      Your code is equivalent to a 0   amp   1    0   and unless a 0  is a boolean this won t compile     You need to    a 0   amp  1     0   etc etc    yes  Java does hava a boolean  amp  operator -- a non shortcut logical and

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