1. Write a program to convert a number from a decimal notation to a number expressed by a numbersystem whose base is 2 (binary), 8 (octal), or 16 (hexadecimal). The conversion is performed byrepetitious division by the base to which a number is being converted and then taking the remainders ofdivision in the reverse order. For example, in converting to binary, number 6 requires three suchdivisions: 6/2 = 3 remainder 0, 3/2 = 1 remainder 1, and finally, 1/2 = 0 remainder 1. The remainders 0, 1,an

Java - Add two binary numbers

Convert string to integer without using any in-built functions - GeeksforGeeks