//规则:Julie 是一个已婚的女性 public static Expression getMarriedWomanExpression() { Expression julie = new TerminalExpression("Julie"); Expression married = new TerminalExpression("Married"); return(new AndExpression(julie, married)); }
//规则:Robert 和 John 是男性 public static Expression getMaleExpression() { Expression robert = new TerminalExpression("Robert"); Expression john = new TerminalExpression("John"); return(new OrExpression(robert, john)); }