Convert java pro

Convert Java Integer object to Numeric primitive types

public class IntegerToNumericPrimitiveTypesExample

{ 

public static void main(String[] args)

{

Integer intObj = new Integer("10");

byte b = intObj.byteValue();

System.out.println(b);

short s = intObj.shortValue();

System.out.println(s);

int i = intObj.intValue();

System.out.println(i);

float f = intObj.floatValue();

System.out.println(f);

double d = intObj.doubleValue();

System.out.println(d);

   }

}

Convert Java String to Integer object

public class StringToIntegerExample

{

public static void main(String[] args)

{

Integer intObj1 = new Integer("100");

System.out.println(intObj1);

String str = "100";

Integer intObj2 = Integer.valueOf(str);

System.out.println(intObj2);

     }

}

Convert String to int

public class StringToIntExample

{

           public static void main(String[] args)

          {

String str = new String("10"); 

int i = Integer.parseInt(str);

System.out.println(i);

   }

}

Convert binary number to decimal number

public class ConvertBinaryToDecimalNumber

 {

public static void main(String[] args)

 {

String strBinaryNumber = "111000";

int decimalNumber = Integer.parseInt(strBinaryNumber,2);

System.out.println("Binary number converted to decimal number");

System.out.println("Decimal number is : " + decimalNumber);

   }

}

Convert decimal integer to binary number

public class ConvertIntToBinaryExample

{

public static void main(String[] args)

 {

      int i = 56;

           String strBinaryNumber = Integer.toBinaryString(i);

System.out.println("Convert decimal number to binary number example");

System.out.println("Binary value of " + i + " is " + strBinaryNumber);

     }

}

Convert decimal integer to hexadecimal number

public class ConvertIntToHexExample

{

 public static void main(String[] args)

 {

int i = 32;

String strHexNumber = Integer.toHexString(i);

System.out.println("Convert decimal number to hexadecimal number example");

System.out.println("Hexadecimal value of " + i + " is " + strHexNumber);

    }

}

Convert decimal integer to octal number

public class ConvertIntToOctalExample

{

public static void main(String[] args)

{                

int i = 27;                 

String strOctalNumber = Integer.toOctalString(i);    

System.out.println("Convert decimal number to octal number example");

System.out.println("Octal value of " + i + " is " + strOctalNumber);

               }

}

Convert hexadecimal number to decimal number

public class ConvertHexToDecimalExample

{  

public static void main(String[] args)

{

String strHexNumber = "20";

int decimalNumber = Integer.parseInt(strHexNumber, 16);

System.out.println("Hexadecimal number converted to decimal number");

System.out.println("Decimal number is : " + decimalNumber);           

   }

}