字符串与字符数组的转换

    xiaoxiao2021-08-27  95

    1、将字符串变成字符数组:

    String  str = “Hello world!”;

    char[]  c = str.toCharArray();

    2、将字符数组变成字符串:

    char[]  c = {‘H’,’e’,’l’,’l’,’o’,’W’,’o’,’r’,’l’,’d’’!’};

    String  str = new String(c);

    3、取出字符串的字符:

    String  str = “Hello world!”;

    for(int i=0;i<str.length();i++){

    char c = str.charAt(i);

    }

    4、将某一部分数组变成字符串:

    char[]  c = {‘H’,’e’,’l’,’l’,’o’,’W’,’o’,’r’,’l’,’d’’!’};

    String  str = new String(c,0,3);

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