public class menglei {
public static void main(String[] args ){
int b = 4;
String s = String.valueOf(b);
char c = s.charAt(0);
System.out.println(c);
}
}
public static void main(String[] args) {
// TODO Auto-generated method stub
int a = 70;
char b = (char)a;
System.out.println(b);
}
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