Question

Given the StringBuilder object builder=“We Are”, what is the output of builder.append(“Family”)?

Given the String object value=“Online Education”, what is the output of value.substring(0,8)?

Answer 1

class StringBuilderDrive {
   public static void main(String[] args) {
       // builder is mutable
       StringBuilder builder = new StringBuilder("We Are");

       // String is immutable
       String value = "Online Education";

       // printing builder
       System.out.println("builder Is\t\t\t: "+builder);

       // this will append "Family" at the end of builder
       builder.append("Family");

       // printing new builder
       System.out.println("builder.append(\"Family\") Is\t: "+ builder);
      
       //printing value
       System.out.println("\nvalue Is\t\t: "+value);

       // get required substring
       value = value.substring(0,8);

       System.out.println("value.substring(0,8) Is\t: "+value);
   }
}