Java 将整数转换为六位二进制字符串。

/** from nowjava - 时代Java**/

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//package com.nowjava;

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public class Main {

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    public static void main(String[] argv) throws Exception {

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        int num = 2;

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        System.out.println(to6BitBinary(num));

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    }

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    /**

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     * Convert an integer into a six bit binary string.

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     * 

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     * @param num The int to convert.

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     * 

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     * @return A six character string that represents the int.

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     */

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    public static String to6BitBinary(int num) {

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        StringBuilder sb = new StringBuilder();

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        for (int i = 0; i < 6; i++) {

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            sb.append(((num & 1) == 1) ? '1' : '0');

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            num >>= 1;

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        }

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