Mary works as a Software Developer for ABC Solutions Inc. She writes the following code. public class StringMethods { public static void main(String[] args) { String str = new String("abc")…

Mary works as a Software Developer for ABC Solutions Inc. She writes the following code. public class StringMethods { public static void main(String[] args) { String str = new String("abc"); str.concat("xyz"); StringBuffer strBuf = new StringBuffer(" 123"); strBuf.append(" no"); System.out.println(str + strBuf);}} What will be the output when Mary tries to compile and execute the code?