vatbub / mathevaluator Goto Github PK

Expected output:
IllegalArgumentException: Circular reference detected

Console output:
Please enter your math expression (Hit Ctrl+C or type 'exit' to quit the program) [default: exit]:
r = r + 1
Exception in thread "main" java.lang.StackOverflowError
at com.github.vatbub.mathevaluator.MathExpression.evaluate(MathExpression.java:275)
at com.github.vatbub.mathevaluator.RuntimeConstant.getValue(RuntimeConstant.java:37)
at com.github.vatbub.mathevaluator.MathExpression.evaluate(MathExpression.java:288)
at com.github.vatbub.mathevaluator.RuntimeConstant.getValue(RuntimeConstant.java:37)
at com.github.vatbub.mathevaluator.MathExpression.evaluate(MathExpression.java:288)
at com.github.vatbub.mathevaluator.RuntimeConstant.getValue(RuntimeConstant.java:37)
at com.github.vatbub.mathevaluator.MathExpression.evaluate(MathExpression.java:288)
at com.github.vatbub.mathevaluator.RuntimeConstant.getValue(RuntimeConstant.java:37)
at com.github.vatbub.mathevaluator.MathExpression.evaluate(MathExpression.java:288)
at com.github.vatbub.mathevaluator.RuntimeConstant.getValue(RuntimeConstant.java:37)
at com.github.vatbub.mathevaluator.MathExpression.evaluate(MathExpression.java:288)
at com.github.vatbub.mathevaluator.RuntimeConstant.getValue(RuntimeConstant.java:37)

Hy,
I'm making this expression:
3.93 + 2.87 + 2.23 + 2.51 + 2.05 + 2+2.65 + 2.66 + 2.6 + 2.6 + 2.6 + 2.6 + 1.9 + 2.6 + 2.6

The result shoud be: 38.4

But I'm getting when running with the MathExpression as result: 38.400000000000006

Here the simple code:
MathExpression expression = new MathExpression("3.93+2.87+2.23+2.51+2.05+2+2.65+2.66+2.6+2.6+2.6+2.6+1.9+2.6+2.6"); System.out.println("expression.value = " + expression.evaluate().getValue());

Is this a bug in your library or what is here wrong?

Thanks,
Tom

Expected output:
7--3 = 7+3 = 10

Console output:

7--3
java.lang.ClassCastException: com.github.vatbub.mathevaluator.OperatorImplementations$SubtractOperator cannot be cast to com.github.vatbub.mathevaluator.Number
at com.github.vatbub.mathevaluator.MathExpression.evaluate(MathExpression.java:333)
at com.github.vatbub.mathevaluator.sample.Main.main(Main.java:45)
Please enter your math expression (Hit Ctrl+C or type 'exit' to quit the program) [default: exit]:
7++6
java.lang.ClassCastException: com.github.vatbub.mathevaluator.OperatorImplementations$AddOperator cannot be cast to com.github.vatbub.mathevaluator.Number
at com.github.vatbub.mathevaluator.MathExpression.evaluate(MathExpression.java:333)
at com.github.vatbub.mathevaluator.sample.Main.main(Main.java:45)