Develop - Binary2Decimal & Decimal2Binary Converter

ErSKS / Java

Java Training

http://khec.edu.np/

MIT License

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Develop - Binary2Decimal & Decimal2Binary Converter #36

Closed ErSKS closed 7 years ago

ErSKS commented 7 years ago

Develop a program consisting two methods: binary2Decimal() & decimal2Binary().

milan604 commented 7 years ago

package decimalbinaryconv;

@author m-lan */ public class DecimalBinaryConv {

/**
- @param args the command line arguments */ public static void main(String[] args) { System.out.printf("Decimal of Binary 100110 is "); binary2Decimal(100110); System.out.printf("\nBinary of Decimal 25 is "); decimal2Binary(25); System.out.println(""); }
static void binary2Decimal(int n) { int d = 0, power = 0; while (true) { if (n == 0) { break; } else { int any = n % 10; d = (int) (d + any * Math.pow(2, power)); n = n / 10; power++; } } System.out.printf("%d", d); }

static void decimal2Binary(int n) { int[] binary = new int[25]; int i = 0; while (n > 0) { binary[i++] = n % 2; n = n / 2; } for (int j = i - 1; j >= 0; j--) { System.out.printf("%d", binary[j]); }

} }

jagdish4249 commented 7 years ago

package binaryanddecimal;

import static java.lang.Math.pow; import java.util.Scanner;

@author Jagdish Duwal */ public class BinaryAndDecimal {

/**

@param args the command line arguments */

static int binary2Decimal(int x){ int power =0,dec=0; while(x>0){ int a = x%10; x /= 10;
dec = (int) (dec + a*pow(2,power)); power++ ;

}
return dec;

}

static String decimal2Binary(int x){ String revBin="",bin = ""; int r; while(x>0){ r = x %2; x /= 2; revBin = revBin.concat(Integer.toString(r));

//bin = Integer.toString(parseInt(bin) *10).concat(Integer.toString(r));
}
for(int i = revBin.length(); i>0; i--){
    bin = bin.concat(revBin.substring(i-1,i));

}

return bin;

}

public static void main(String[] args) { int x ,param; String again; Scanner input = new Scanner(System.in); do{ System.out.println("Enter a binary no or decimal no: "); x= input.nextInt();

System.out.println("Enter your choice: \n1.binary2Decimal \n 2.decimal2Binary \n");

int choice = input.nextInt(); switch(choice){

   case 1:
       int binCheck=0;
       param= x;
        while(x>0){
        int a = x%10;
        x /= 10;

        if( a!=0 && a!=1){
            binCheck++;
        }
        }

        if(binCheck >0){
            System.out.println("Sorry. Not a binary no.");
        }else{

            System.out.println("the decimal equivalent to the input binary is "+binary2Decimal(param));
        }

     break;    

    case 2:
        int decCheck=0;

        if( x<0){
            decCheck++;
        }

        if(decCheck >0){
            System.out.println("Sorry. Not a decimal no.");
        }else{

            System.out.println("the binary equivalent to the input decimal is "+decimal2Binary(x));
        }

     break;    

    default: 
        System.out.println("Invalid choice");

}

    System.out.println("type 'y' if you want to run again");

       again = input.next();
    }while(again.equalsIgnoreCase("y"));

}

capture

karmi214 commented 7 years ago

To change this license header, choose License Headers in Project Properties.
To change this template file, choose Tools | Templates
and open the template in the editor. */ package btod_dtob;

import java.util.Scanner;

@author Anish */ public class BtoD_DtoB {

public static void decimal2Binary(int num) { int binary[] = new int[40]; int i = 0; while (num > 0) { binary[i] = num % 2; num = num / 2; i++; } for (int j = i - 1; j >= 0; j--) { System.out.print(binary[j]); } }

public static void binary2Decimal(int num) { int decimal = 0, p = 0; while (true) { if (num == 0) { break; } else { decimal += (num % 10) * Math.pow(2, p); num = num / 10; p++; } } System.out.print(decimal); }

/**
- @param args the command line arguments */ public static void main(String[] args) { // TODO code application logic here String c = "y"; while (c.equalsIgnoreCase("y")) { Scanner in = new Scanner(System.in); int num; System.out.print("1: Binary to Decimal\n2: Decimal to Binary\nEnter you choice:"); int ch = in.nextInt(); switch (ch) { case 1: System.out.print("Enter your number:"); num = in.nextInt(); System.out.print("The decimal equivalent of the number is:"); binary2Decimal(num); break; case 2: System.out.print("Enter your number:"); num = in.nextInt(); System.out.print("The binary equivalent of the number is:"); decimal2Binary(num); break; default: System.out.print("Invalid input"); break; } System.out.print("\nDo you want to enter again?(Y/N):"); c = in.next(); } }

} capture

RakenShahi commented 7 years ago

To change this license header, choose License Headers in Project Properties.
To change this template file, choose Tools | Templates
and open the template in the editor. */ package conversioni;

import java.util.Scanner;

@author DELL */ public class Conversioni {

static int binary2Decimal(int n) { int rem, d = 0, b = 1; while (n > 0) {
```
    rem = n % 10;
    d = d + rem * b;
    n = n / 10;
    b = b * 2;

}
System.out.println("Its decimal equivalent is: " + d);
return n;
```
}

static int decimal2Binary(int n) { int rem, b = 0, i = 1; while (n > 0) {
```
    rem = n % 2;
    b = b + rem * i;
    n = n / 2;
    i = i * 10;

}
System.out.println("Its binary equivalent is: " + b);
return n;
```
}

public static void main(String[] args) { Scanner input = new Scanner(System.in); int bi, de, n, check, temp; System.out.print("1. Binary to Decimal conversion.\n2. Decimal to Binary conversion.\n"); n = input.nextInt(); switch (n) { case 1: { System.out.println("Enter the valid binary number"); bi = input.nextInt(); binary2Decimal(bi); break; } case 2: { System.out.println("Enter the valid decimal number"); de = input.nextInt(); decimal2Binary(de); break;
```
    }
}
```
}

}

OUTPUT b2d d2b

SusanCB commented 7 years ago

To change this license header, choose License Headers in Project Properties.
To change this template file, choose Tools | Templates
and open the template in the editor. */ package task10.pkg3;

import java.util.Scanner;

@author nissus */ public class Task103 { static int binary2Decimal(int n) { int r, k = 0, b = 1; while (n > 0) {

r = n % 10; k = k + r b; n = n / 10; b = b 2;

} System.out.println("Its decimal equivalent is: " + k); return n; }

static int decimal2Binary(int n) { int r, k = 0, i = 1; while (n > 0) {

 r = n % 2;
 k = k + r * i;
 n = n / 2;
 i = i * 10;

} System.out.println("Its binary equivalent is: " + k); return n; }

/**
 * @param args the command line arguments
 */
public static void main(String[] args) {
    String check = "y";

while (check.equalsIgnoreCase("y")) { Scanner input=new Scanner(System.in); System.out.println("Enter 1:Binary to Decimal\n \t2:Decimal to Binary");

    int x=input.nextInt();
    switch (x)
    {
        case 1:
            System.out.println("Enter a binary number");
            input=new Scanner(System.in);
            int bin=input.nextInt();
            binary2Decimal(bin);
            break;
        case 2:
            System.out.println("Enter a decimal number");
            input=new Scanner(System.in);
            int dec=input.nextInt();
            decimal2Binary(dec);
            break;
        default:
        System.out.print("Invalid input");
        break;
        }
        System.out.print("\nDo you want to try again?(Y/N):");
        check = input.next();
    }
}

}

bin2dec3

kajalmaharjan commented 7 years ago

To change this license header, choose License Headers in Project Properties.
To change this template file, choose Tools | Templates
and open the template in the editor. */ package bintodec_dectobin;

import java.util.Scanner;

@author kajal */ public class BinToDec_DecToBin {

static int binToDec(int n) { int r, d = 0, b = 1; while (n > 0) { r = n % 10; d = d + r b; n = n / 10; b = b 2; } System.out.println("the decimal equivalent is: " + d); return n; }

static int decToBin(int n) { int r, b = 0, i = 1; while (n > 0) {
```
    r = n % 2;
    b = b + r * i;
    n = n / 2;
    i = i * 10;

}
System.out.println("Its binary equivalent is: " + b);
return n;
```
}

/**
- @param args the command line arguments */ public static void main(String[] args) { // TODO code application logic here Scanner s = new Scanner(System.in); int b, d, n; String a = "y"; while (a.equalsIgnoreCase("y")) { System.out.print("Enter your choice\n1.Binary to Decimal\n2.Decimal to Binary\n"); n = s.nextInt(); switch (n) { case 1: System.out.print("\nEnter the binary number:"); b = s.nextInt(); binToDec(b); break;
```
    case 2:
        System.out.print("\nEnter the decimal number:");
        d = s.nextInt();
        decToBin(d);
        break;
    default:
        System.out.print("Invalid input");
        break;
}
System.out.print("\nPress Y to continue\n");
a = s.next();
```
  }
} }

Sudan15423 commented 7 years ago

To change this license header, choose License Headers in Project Properties.
To change this template file, choose Tools | Templates
and open the template in the editor. */ package tasks2;

import static java.lang.Integer.parseInt; import java.util.Scanner;

@author Dragon15423 */ public class Tasks2 {

/**

@param args the command line arguments */ public static void main(String[] args) { // TODO code application logic here Scanner input = new Scanner(System.in); boolean stat = true, st = true; System.out.println("Enter any binary number(eg:101011): ");

while (stat == true) {

String number = input.nextLine();
stat = !number.matches("[0-1]+");

if (stat == true) {

    System.out.println("Please enter a valid binary number (eg: 101101) = ");

} else {

    binary2Decimal(number);

}

}

System.out.println("Enter any decimal number(eg:123456): ");

while (st == true) {

String number = input.nextLine();

st = !number.matches("[0-9]+");

if (st == true) {

    System.out.println("Please enter a valid decimal number (eg: 123456) = ");

} else {
    decimal2Binary(number);
}

} }

static void binary2Decimal(String number) { int a = number.length(), s, b = 0, c = number.length() - 1;

for (int i = 0; i < a; i++) {
    s = Character.getNumericValue(number.charAt(i));
    s *= Math.pow(2, c);
    b += s;
    c--;
}

System.out.println("The Decimal equivalent of (" + number + ") is : " + b);

}

static void decimal2Binary(String number) { int a = number.length(), r; int d = parseInt(number); System.out.print("The Binary equivalent of (" + number + ") is : ");

while (d != 0) {
    r = d % 2;
    d = d / 2;
    System.out.print(r + "");

}

}

} headache

kiir33 commented 7 years ago

To change this license header, choose License Headers in Project Properties.
To change this template file, choose Tools | Templates
and open the template in the editor. */ package binaryconversion;

@author Kiran */ public class BinaryConversion {

/**
- @param args the command line arguments */ public static void main(String[] args) { // TODO code application logic here System.out.println("Converting decimal to binary..."); System.out.println("Binary of 2 \t : " + toBinary(2)); System.out.println("Binary of 5 \t : " + toBinary(5)); System.out.println("Binary of 27 \t : " + toBinary(27));
  
  System.out.println("-------------------------------\nConverting binary to decimal..."); System.out.println("Decimal of 10 \t : " + toDec(10)); System.out.println("Decimal of 101 \t : " + toDec(101)); System.out.println("Decimal of 11011 : " + toDec(11011)); }
static int toBinary(int n) { int r = 0, i = 0, ans = 0, t = n; while (t > 0) { if (t % 2 == 0) { i++; t /= 2; } else { break; } } while (n > 0) { r = r 10 + n % 2; n /= 2; } while (r > 0) { ans = ans 10 + r % 10; r /= 10; } ans *= Math.pow(10, i); return ans; }

static int toDec(int n) { int r, d = 0, i = 0; while (n > 0) { r = n % 10; d += r * Math.pow(2, i); n /= 10; i++; } return d; } }

Output:

conversion

ajay987 commented 7 years ago

To change this license header, choose License Headers in Project Properties.
To change this template file, choose Tools | Templates
and open the template in the editor. */ package convertor;

import java.util.Scanner;

@author Dell */ public class Convertor {

/**
- @param args the command line arguments / static int binarytodecimal(int n) { int c, b = 1, d = 0; while (n > 0) { c = n % 10; d = d + c b;
```
n = n / 10;
b = b * 2;
```
  } System.out.println("decimal eqivalent:" + d); return n; }
static int decimaltobinary(int n) { int b = 1, c, d = 0; while (n > 0) { c = n % 2; d = d + c b; n = n / 2; b = b 10; } System.out.println("Eqivalent binary:" + d); return n; }

public static void main(String[] args) { // TODO code application logic here String check = "y"; Scanner in = new Scanner(System.in); while (check.equalsIgnoreCase("y")) { System.out.println("Enter choice\n"
- "1:binary2decimal\n"
- "2:decimal2binary"); int x = in.nextInt(); switch (x) { case 1: System.out.println("Enter binary value"); int p = in.nextInt(); binarytodecimal(p); break; case 2: System.out.println("Enter decimal value"); int q = in.nextInt(); decimaltobinary(q); break; default: System.out.println("invalid input"); } System.out.println("continue?y or n"); check = in.next(); } }

} b2d

sajanbasnet75 commented 7 years ago

To change this license header, choose License Headers in Project Properties.
To change this template file, choose Tools | Templates
and open the template in the editor. */ package bindec;

import java.util.Scanner;

@author LORDsajan */ public class BinDec {

/**
- @param args the command line arguments */ static int DecToBin(int n) { int[] rem = new int[50]; int b = 1, c, d = 0, i = 0; while (n > 0) { rem[i] = n % 2; n = n / 2; i++; } System.out.println("Its binary is:"); for (int j = i - 1; j >= 0; j--) { System.out.print(rem[j]); } return 0; }
static int BinToDec(int n) { int dec = 0, i = 0; while (n > 0) { dec = (int) (dec + (n % 10) * Math.pow(2, i)); n = n / 10; i++; } return dec; }

public static void main(String[] args) { Scanner inp = new Scanner(System.in); String ch; do { System.out.println("Enter your choice\n1.Binary to Decimal \n2.Decimal to Binary"); int n = inp.nextInt(); switch (n) { case 1: System.out.println("enter a binary number:"); int bno = inp.nextInt(); System.out.println("The decimal of " + bno + " is :" + BinToDec(bno)); break; case 2: System.out.println("enter a decimal number:"); int dno = inp.nextInt(); DecToBin(dno); break; default: System.out.println("invalid"); break; } System.out.println("\nContinue?(y/n)"); ch = inp.next(); } while (ch.equalsIgnoreCase("y"));

}

} capture

syslin commented 7 years ago

To change this license header, choose License Headers in Project Properties.
To change this template file, choose Tools | Templates
and open the template in the editor. */ package binarytodecimalanddecimaltobinary;

import static java.time.Clock.system; import java.util.Scanner;

@author dell */ public class BinaryTodecimalANdDEcimalToBinary {

/**

@param args the command line arguments */ public static void main(String[] args) { // TODO code application logic here int choice; String check = "y"; while (check.equalsIgnoreCase("y")) {

System.out.println("Enter your choice \n 1: binary o decimal \n 2:decimal to binary");
Scanner ch = new Scanner(System.in);
choice = ch.nextInt();

switch (choice) {
    case 1: {
        Scanner s = new Scanner(System.in);
        System.out.println("Enter a binary number:");
        int n = s.nextInt();
        int decimal = 0, p = 0;
        while (n != 0) {
            decimal += ((n % 10) * Math.pow(2, p));
            n = n / 10;
            p++;
        }
        System.out.println("Decimal value is: " + decimal);
    }
    break;
    case 2: {
        Scanner s = new Scanner(System.in);
        System.out.println("Enter a decimal number:");
        int n = s.nextInt();
        int r, b = 0, i = 1;
        while (n > 0) {
            r = n % 2;
            b = b + r * i;
            n = n / 2;
            i = i * 10;

        }
        System.out.println("Binary value is: " + b);

    }
    break;

    default:
        System.out.println("Invalid");
        break;

}
System.out.println("Do you want to continue if yes pres y else press anything");
check = ch.next();

} }

}