十进制转化为二进制

/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub

toBin(6);
}
/*十进制转化为二进制*/

public static void toBin(int num)
{
StringBuffer sb = new StringBuffer();
while(num>0)
{
//System.out.print(num%2);
sb.append(num%2);
num = num / 2;

}
System.out.println(sb.reverse());
}