Java中的String charAt()方法(带有示例)。

String charAt() Method in Java with Example.

现场演示

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import java.lang.*;
public class StringDemo {
 public static void main(String[] args) {
   String str ="This is tutorialspoint";
   // prints character at 1st location
   System.out.println(str.charAt(0));

   // prints character at 5th location i.e white-space character
   System.out.println(str.charAt(4));

   // prints character at 18th location
   System.out.println(str.charAt(17));
 }
}