About return value of Integer.toString(char)

Question

如果Integer.toString(c)返回1087 ，则char变量c的可能值是多少？

Answer 1

When you call Integer.toString() with a char :

char c = ...
Integer.toString(c);

the char (16 bit) will be converted to an int (32 bit) by adding leading zeros.

That means if the output is 1087, then the original char's binary is 10000111111 (in hex 0x043F). It should be п accoding to this table .

public static void main(String[] args) {
    char c = 'п';
    System.out.println(Integer.toString(c)); // 1087
}

Answer 2

您可以执行Character.toString（c）而不是Integer.toString（c）并获取字符表示形式，而不是整数表示形式。