Java for loop multiple variables

Question

I m not sure why my Java code wont compile  any suggestions would be appreciated      String rank   card substring 0 1       String suit   card substring 1       String cards    A23456789TJQKDHSCl       String   name     Ace   Two   Three   Four   Five   Six   Seven   Eight   Nine   Ten   Jack   Queen   King   Diamonds   Hearts   Spades   Clubs        String c          for int a   0  b   1  a lt cards length-1  b a 1  a              if rank   cards substring a b               c  name a                         system out println c

User · Answer

change this line   for int a   0  b   1  a lt cards length-1  b a 1  a         to   for int a   0  b   1  a lt cards length-1  b a 1  a

User · Answer

Your for loop is wrong  Try    for int a   0  b   1  a lt cards length  -1  b a 1  a       Also  System instead of system and    instead of       But I m not sure what you re trying to do

User · Answer

It is cards length    not cards length  length is a method of java lang String  not an attribute   It is System out  capital  s    not system out  See java lang System  It is  for int a   0  b   1  a lt cards length  -1  b a 1  a       not  for int a   0  b   1  a lt cards length-1  b a 1  a       Syntactically  it is if rank    cards substring a b     not if rank   cards substring a b    double equals  not triple equals  missing closing parenthesis   but to compare if two Strings are equal you need to use equals    if rank equals cards substring a b       You should probably consider downloading Eclipse  which is an integrated development environment  not only  for Java development  Eclipse shows you the errors while you type and also provides help in fixing these  This makes it much easier to get started with Java development

User · Answer

The for loop can only contain three parameters  you have used 4  Please restate the question  what do you want to achieve

User · Answer

Instead of this   for int a   0  b   1  a lt cards length-1  b a 1  a       It should be   for int a   0  b   1  a lt cards length  -1  b a 1  a                                                                                                                                                                                         -------------------------------------------Note the changes                                             v                                                       if rank  cards substring a b                                 -------------------------------------------------------------                                     v System out println c     capital S in system

User · Answer

I think this should work       String rank   card substring 0 1       String suit   card substring 1       String cards    A23456789TJQKDHSCl        String   name     Ace   Two   Three   Four   Five   Six   Seven   Eight   Nine   Ten   Jack   Queen   King   Diamonds   Hearts   Spades   Clubs        String c          for int a   0  b   1  a lt cards length  -1  b a 1  a                   if  rank equals  cards substring a b                            c  name a                         System out println c

User · Answer

Separate the increments with a comma too   for int a   0  b   1  a lt cards length-1  b a 1  a

User · Answer

Only two Semicolons are allowed to be used in for loop     Before first semicolon is the initialization part  After first semicolon and before second semicolon is condition part  must result in boolean   After second semicolon is variable manipulation part  increment decrement part     If you have do initialization of multiple variables or manipulation of multiple variables  you can achieve it by separating them with comma      for int i 0  j 5  i  lt  5  i    j--    NOTE  Multiple conditions separated by comma are NOT allowed   for int i 0  j 5  i  lt  5  j  gt  5  i    j--     This is NOT allowed

User · Answer

Your for loop is malformed  mdash  it can t take 4 arguments  and you can t combine two with   as you did   Use    for int a   0  b   1  a lt cards length-1  a

[java] Java for loop multiple variables

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