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java.lang.Objectcom.ssv.utils.tree.Tree<Leaf>
com.ssv.utils.tree.BinaryTree<Expression>
com.ssv.test.airbase.contest.Expression
com.ssv.test.airbase.contest.expressions.ExpressionOperation
public class ExpressionOperation
This node represent ariphmetical action, like +, - etc. This is non-leaf node and it always has both left and right branches non-null. Не всегда, правда, оба принимают участие в вычислении. Если встречается унарная операция, она кодируется как бинарная с левой ветвью содержащей фиктивное значение.
Field Summary |
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Fields inherited from interface com.ssv.utils.CompoundName |
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DOT, SLASH |
Constructor Summary | |
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ExpressionOperation(Parser.Token token,
Expression left,
Expression right,
Parser.ParserContext ctx)
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Method Summary | |
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double |
evaluate()
Пересчитывает данный узел, и возвращает результат. |
java.lang.String |
toString()
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Methods inherited from class com.ssv.test.airbase.contest.Expression |
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ctx |
Methods inherited from class com.ssv.utils.tree.BinaryTree |
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getLeft, getNode, getRight, infix, infixInverted, main, print, setLeft, setRight, size |
Methods inherited from class com.ssv.utils.tree.Tree |
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add, format, format, format, getLastToken, getParent, getPrefix, getToken, isTerminal, iterator, numTokens, postfix, postfix, prefix, prefix, printPostfix, printPrefix, remove, toArray |
Methods inherited from class java.lang.Object |
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equals, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public ExpressionOperation(Parser.Token token, Expression left, Expression right, Parser.ParserContext ctx)
Method Detail |
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public java.lang.String toString()
toString
in class java.lang.Object
public double evaluate() throws ParserException
Expression
evaluate
in class Expression
ParserException
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