Java Integer toHexString() method

The toHexString() method of Java Integer class returns a string representing the specified int argument as an unsigned integer in base 16. Syntax public static String toHexString (int  i)  Parameters The parameter ‘i’ represents an integer to be converted to a string. Return Value This method returns the string which represents the unsigned integer value of the argument in hexadecimal. Example 1

public class JavaIntegerToHexStringExample1 {
    public static void main(String[] args) {
        Integer val=2;
        String val1=Integer.toHexString(val);
      //Returns a string representation of the integer argument as an unsigned integer in base 16   
        System.out.println("Hex String : "+val1);
    }
}

Output

Hex String : 2

Example 2

public class JavaIntegerToHexStringExample2 {
    public static void main(String[] args) {
        //passing negative value
        Integer val=-982;
        String val1=Integer.toHexString(val);
        //Returns a string representation of the integer argument as an unsigned integer in base 16      

        System.out.println("Hex String : "+val1);
    }
}

Output

Hex String : fffffc2a

Example 3

public class JavaIntegerToHexStringExample3 {
    public static void main(String[] args) {
        //passing the maximum value
        Integer val=Integer.MAX_VALUE;
        String val1=Integer.toHexString(val);
        //Returns a string representation of the integer argument as an unsigned integer in base 16      

        System.out.println("Hex String : "+val1);
    }
}

Output

Hex String : 7fffffff

Example 4

public class JavaIntegerToHexStringExample4 {
    public static void main(String[] args) {
        //passing 0
        Integer val=0;
        String val1=Integer.toHexString(val);
        //Returns a string representation of the integer argument as an unsigned integer in base 16        
        System.out.println("Hex String : "+val1);
    }
}

Output

Hex String : 0