package huafeng2019.github.io16;
public class Main {
public static void main(String[] args) {
StringBuilder sb = new StringBuilder("abc");
sb.append("de").insert(2, "g");
System.out.println(sb);
}
}
package huafeng2019.github.io16;
public class Main {
public static void main(String[] args) {
StringBuilder sb = new StringBuilder("abc");
sb.append("de").insert(2, "g");
System.out.println(sb);
}
}