JAVA

java integer to binary string

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

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();
}

int to binary java

String binary = Integer.toBinaryString(num);

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