?? client.java
字號:
package com.javapatterns.interpreter;
public class Client
{
private static Context ctx;
private static Expression exp ;
public static void main(String[] args)
{
ctx = new Context();
Variable x = new Variable("x");
Variable y = new Variable("y");
Constant c = new Constant(true);
ctx.assign(x, false);
ctx.assign(y, true);
exp = new Or( new And(c, x) , new And(y, new Not(x)));
System.out.println( "x = " + x.interpret(ctx));
System.out.println( "y = " + y.interpret(ctx));
System.out.println( exp.toString() + " = " + exp.interpret(ctx));
}
}
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