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Message: [QUOTE="ashu, post: 5021666"] Dear friends, i am trying to solve one question about word counting and i am surprise by statement behaviors, actully i want to check if is a character not a space,tab or newline, i am not giving full code. 1st statement : if(c==' '|| c=='\n' || c== '\t') {then go to next character } else ( increase no of word} it checks if character is a space,tab or newline and i will do nothing with it.else i increase no of word. works fine 2nd statement : if(c!=' '|| c!='\n' || c!='\t') { increase no of word} i want to directly check if not a space,tab or newline but this statement is doing nothing , why? example : this is a test statement 1st works fine returns 2 but statement 2nd does nothing. [/QUOTE]