from int to bit code code example
Example 1: java integer to binary string
int n = 1000;
String s = Integer.toBinaryString(n);
Example 2: java int to binary string
public static String makeBinaryString(int n) {
StringBuilder sb = new StringBuilder();
while (n > 0) {
sb.append(n % 2);
n /= 2;
}
sb.reverse();
return sb.toString();
}