BitsArray.java

class BitsArray{
 private String bits;
 BitsArray(int numBits,int value){
 this.bits=String.format("%"+numBits+"s",Integer.toBinaryString(value)).replaceAll(" ","0");
 }
 BitsArray(String part){
 this.bits=part;
 }
 String getBits(){
 return bits;
 }
 int getValue(){
 return Integer.parseInt(this.bits,2);
 }
 BitsArray getRange(int startingInd,int endingInd){
 return new BitsArray(this.bits.substring(startingInd, endingInd));
 }
 BitsArray setRange(int startingInd,int endingInd,BitsArray bitStream){
 return new BitsArray(this.getBits().substring(0, startingInd)+bitStream.getBits()+this.getBits().substring(endingInd, 40));
 }
 boolean isEmpty(){
 return String.format("%"+this.bits.length()+"d",0).replaceAll(" ","0").equals(this.bits);
 }
}


class MixedReturn{
 Runnable runnable;int interger;
 MixedReturn(int i,Runnable r){
 this.interger=i;
 this.runnable=r;
 }
}