Java 小写/大写和字符的ASCII码

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public class Main {

/**

来 自 n o w j a v a . c o m

**/

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  public static void main(String[] args) {

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    char c1, c2;

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    c1 = 'a';

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    c2 = 'z';

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    // Compare character code

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    if (c1 < c2) {

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      System.out.println(c1 + " is before " + c2);

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    } else {

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      System.out.println(c1 + " is after or equal to " + c2);

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    }/*nowjava 提供*/

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    int codec1 = c1; // type casting/conversion

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    int codec2 = c2; // type casting conversion

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