/* Renata Lara */
/* Computer Architecture */
/* Dr. Abraham */
/* February 22, 1999 */
/* Class HalfAdder performs the basic */
/* ANDgate, ORgare, and NOTgate functions. */
/* It inputs the bits from the keyboard and */
/* parses them to make them booleans. Then */
/* the individual functions are calles from */
/* Class1.java and they return the sum and */
/* carrybit accordingly. */
import java.io.*;
public class HalfAdder
{
public HalfAdder()throws IOException
{
InputStreamReader isr = new InputStreamReader(System.in);
BufferedReader in = new BufferedReader(isr);
System.out.print("Enter bit A: ");
inA = in.readLine();
System.out.flush();
System.out.print("Enter bit B: ");
inB = in.readLine();
System.out.flush();
System.out.print("Enter bit C: ");
inC = in.readLine();
System.out.flush();
System.out.println();
//StringToBinary();
parseBitString();
}
public void parseBitString()
{
for (int j = 0; j<2; j++)
{
temp = inA.substring(1-j,1-j+1);
intA = Integer.parseInt(temp);
arrayA[j] = intA;
temp = inB.substring(1-j,1-j+1);
intB = Integer.parseInt(temp);
arrayB[j] = intB;
temp = inC.substring(1-j,1-j+1);
intC = Integer.parseInt(temp);
arrayC[j] = intC;
}
}
public void StringToBinary()
{
intA = Integer.parseInt(inA);
intB = Integer.parseInt(inB);
intC = Integer.parseInt(inC);
}
public boolean BinaryToBoolean(int bit)
{
if (bit == 1)
return true;
else return false;
}
public int getA(int m)
{return arrayA[m];}
public int getB(int m)
{return arrayB[m];}
public int getC(int m)
{return arrayC[m];}
public int ANDgate(int num1, int num2)
{
bit1 = BinaryToBoolean(num1);
bit2 = BinaryToBoolean(num2);
if (bit1 && bit2)
return 1;
else return 0;
}
public int ORgate(int num1, int num2)
{
bit1 = BinaryToBoolean(num1);
bit2 = BinaryToBoolean(num2);
if (bit1 || bit2)
return 1;
else return 0;
}
public int NOTgate(int num)
{
bit1 = BinaryToBoolean(num);
if (bit1)
return 0;
else return 1;
}
private String inA;
private String inB;
private String inC;
private String temp;
private int[] arrayA = new int[2];
private int[] arrayB = new int[2];
private int[] arrayC = new int[2];
private int intA;
private int intB;
private int intC;
//private int m;
private boolean bit1;
private boolean bit2;
}