Convert String to Binary

[erakhman]

public class Convert {

    public static void main(String[] args) {
    	
    	System.out.println(Integer.parseInt("1010",2));
    }
    
}

i try convert String to biner but i think my answer is not correct, because i'm input number 1010 and 1010 is biner number so why result is not 1010.

Thanks.

[JosAH]

public class Convert {

    public static void main(String[] args) {
    	
    	System.out.println(Integer.parseInt("1010",2));
    }
    
}

i try convert String to biner but i think my answer is not correct, because i'm input number 1010 and 1010 is biner number so why result is not 1010.

Thanks.

"1010" is the String representation of a number in binary representation; it is 10 decimal which is the default format if you print it. The Integer class has a method that generates String representations in other radixes (which is kind of useless here because you already have the binary String representation to start with).

kind regards,

Jos