how to convert number to binary number in java code example

Example 1: java integer to binary string

int n = 1000;
String s = Integer.toBinaryString(n);

Example 2: integer to binary java

Integer.toString(100,8) // prints 144 --octal representation

Integer.toString(100,2) // prints 1100100 --binary representation

Integer.toString(100,16) //prints 64 --Hex representation