39 lines
1.2 KiB
Java
39 lines
1.2 KiB
Java
package patronInterpreter;
|
|
|
|
//Esta clase es la encargada de interpretar el contexto.
|
|
public abstract class Expression {
|
|
public void interpret(Context context)
|
|
{
|
|
if (context.getInput().length() == 0)
|
|
return;
|
|
|
|
if (context.getInput().startsWith(nine()))
|
|
{
|
|
context.setOutput(context.getOutput() + (9 * multiplier()));
|
|
context.setInput(context.getInput().substring(2));
|
|
}
|
|
else if (context.getInput().startsWith(four()))
|
|
{
|
|
context.setOutput(context.getOutput() + (4 * multiplier()));
|
|
context.setInput(context.getInput().substring(2));
|
|
}
|
|
else if (context.getInput().startsWith(five()))
|
|
{
|
|
context.setOutput(context.getOutput() + (5 * multiplier()));
|
|
context.setInput( context.getInput().substring(1));
|
|
}
|
|
|
|
while (context.getInput().startsWith(one()))
|
|
{
|
|
context.setOutput(context.getOutput() + (1 * multiplier()));
|
|
context.setInput(context.getInput().substring(1));
|
|
}
|
|
}
|
|
|
|
public abstract String one();
|
|
public abstract String four();
|
|
public abstract String five();
|
|
public abstract String nine();
|
|
public abstract int multiplier();
|
|
}
|