Java lib for parsing and evaluating simple math expressions, using fractions. This was a seminar project in a Programming class. It is not very useful, but works
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rcalc/src/net/mightypork/rcalc/tokens/TokenOperatorSubtract.java

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515 B

package net.mightypork.rcalc.tokens;
import net.mightypork.rcalc.TokenList;
import net.mightypork.rcalc.operations.Operation;
import net.mightypork.rcalc.operations.OperationSubtract;
/**
* Subtraction token
*
* @author Ondrej Hruska
*/
public class TokenOperatorSubtract extends TokenBinaryOperator {
@Override
public String toString() {
return "-";
}
@Override
public Operation toOperation(TokenList left, TokenList right) {
return new OperationSubtract(left.parse(), right.parse());
}
}