/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Max
{
	long max;
 
	public Number constrain(Number n) {
	    if (n.longValue() <= max) 
	       try{
	           return n.getClass()
	                .getConstructor(String.class)
	                .newInstance(String.valueOf(max));
	       }catch(Exception ex){ex.printStackTrace();}
	    return n;
	}
 
	public static void main(String[]args){
	    Max m = new Max();
	    m.max = 10;
	    System.out.println(m.constrain(new Double(25)).getClass()); // class java.lang.Double
	    System.out.println(m.constrain((int) 18).getClass());       // class java.lang.Integer
	}
}

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