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Check the capacity of StringBuilder object

public class Main {   public static void main(String[] a) {     StringBuilder builder1 = new StringBuilder();     StringBuilder builder2 = new StringBuilder(0);     StringBuilder builder3 = new StringBuilder(100);     System.out.println(builder1.capacity());     System.out.println(builder2.capacity());     System.out.println(builder3.capacity());   } } /* 16 0 100 */