How to make a boolean variable switch between true and false every time a method is invoked

Question

I am trying to write a method that when invoked  changes a boolean variable to true  and when invoked again  changes the same variable to false  etc   For example  call method -  boolean   true -  call method -  boolean   false -  call method -  boolean   true  So basically   if  a   false    a   true    if  a   true    a   false      I am not sure how to accomplish this  because every time I call the method  the boolean value changes to true and then false again

User · Answer

value    value    false   true    Conditional  ternary  Operator

User · Answer

private boolean negate boolean val        return  val      I think that is what you are asking for

User · Answer

var logged in   false  logged in    logged in    A little example    x000D   x000D  var logged in   false  x000D   x000D   x000D      enable   click function     x000D      logged in    logged in  x000D      checkLogin    x000D      x000D   x000D  function checkLogin    x000D      if  logged in  x000D              id test   removeClass  test   addClass  test hidde    x000D      else x000D              id test   removeClass  test hidde   addClass  test    x000D          id test   text     id test   text        logged in   x000D    x000D   test  x000D      color  red  x000D      font-size  16px  x000D      width  100000px x000D    x000D   x000D   test hidde  x000D      color   000  x000D      font-size  26px  x000D    x000D   lt script src  https   ajax googleapis com ajax libs jquery 2 1 1 jquery min js  gt  lt  script gt  x000D   lt div class  test  id  id test  gt Some Content    lt  div gt  x000D   lt div style  display  none  id  id test  gt Some Other Content    lt  div gt  x000D   x000D   x000D   lt div gt  x000D       lt button id  enable  gt Edit lt  button gt  x000D   lt  div gt  x000D   x000D   x000D

User · Answer

in java when you set a value to variable  it return new value  So   private boolean getValue          return value    value

User · Answer

I do it with boolean    boolean

User · Answer

value    true    That is value xor-equals true  which will flip it every time  and without any branching or temporary variables

User · Answer

Assuming your code above is the actual code  you have two problems   1  your if statements need to be       not      You want to do comparison  not assignment   2  The second if should be an  else if   Otherwise when it s false  you will set it to true  then the second if will be evaluated  and you ll set it back to false  as you describe  if  a    false      a   true    else if  a    true      a   false      Another thing that would make it even simpler is the     operator   a    a    will switch the value of a

User · Answer

Just toggle each time it is called  this boolValue    this boolValue

User · Answer

Without looking at it  set it to not itself  I don t know how to code it in Java  but in Objective-C I would say   booleanVariable    booleanVariable    This flips the variable

[java] How to make a boolean variable switch between true and false every time a method is invoked?

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