eclipse - Recursive Method in Java, Invalid AssignmentOperator -


i trying use recursive method in java assignment in class. given return each condition, , use test method.

however, keeps telling me (r-1) , (p-1), within if/else statements in method, have invalid assignmentoperator.

i have tried changing return types on method, messed around structure of statements, , on..

here code:

public static void main(string[] args) {          recursivealgorithm(0, 0);         recursivealgorithm(0, 1);         recursivealgorithm(1, 1);         recursivealgorithm(1, 2);          recursivealgorithm(1, 3);         recursivealgorithm(2, 2);         recursivealgorithm(3, 2);   }       public static int recursivealgorithm(int r, int p) {          if (r == 0) {             return p + 1;         }          if (p == 0){             return recursivealgorithm(r – 1, 1);         }          else {             return recursivealgorithm(r – 1, recursivealgorithm(r, p – 1));         }      }

i have no idea i'm doing wrong, i'm sure has syntax, have no idea else try. very, appreciated.

error:

exception in thread "main" java.lang.error: unresolved compilation problems:  syntax error on token "invalid character", invalid assignmentoperator syntax error on token "invalid character", invalid assignmentoperator syntax error on token "invalid character", invalid assignmentoperator  @ javaproject.java_recursion.recursivealgorithm(java_recursion.java:25) @ morris_brittany.java_recursion.main(java_recursion.java:7)

do this:

public static void main(string[] args) {      recursivealgorithm(0, 0);     recursivealgorithm(0, 1);     recursivealgorithm(1, 1);     recursivealgorithm(1, 2);      recursivealgorithm(1, 3);     recursivealgorithm(2, 2);     recursivealgorithm(3, 2);

}

 public static int recursivealgorithm(int r, int p) {      if (r == 0) {         return p + 1;     }      if (p == 0){         return recursivealgorithm(r - 1, 1);     }      else {         return recursivealgorithm(r - 1, recursivealgorithm(r, p - 1));     }  }

the problem - different character minus sign on keyboard. have no idea why put kind of character there, eclipse said character not - can use this , see copy - , – see both different.


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