System.out.println(Long.toBinaryString(9));
System.out.println(Integer.toBinaryString(9999));
System.out.println(Integer.toBinaryString(07));//8进制
System.out.println(Integer.toBinaryString(0x9));//16进制
输出结果:
1001
10011100001111
1001
111
System.out.println(Long.toBinaryString(9));
System.out.println(Integer.toBinaryString(9999));
System.out.println(Integer.toBinaryString(07));//8进制
System.out.println(Integer.toBinaryString(0x9));//16进制
输出结果:
1001
10011100001111
1001
111