Java example of converting an integer into binary code

The method of converting an integer to binary:

1method 1: use BigInteger class:

2 method 2: use integer toBinaryString()：

As described above, an integer can indeed be converted into binary, but the disadvantage is that when a number is converted into binary, it is less than 8 bits, and 0 will not be automatically supplemented; Therefore, when you want to obtain an 8-bit binary number, you need to add judgment:

summary

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