// StringBufferFunctionsDemo1.java

public class StringBufferFunctionsDemo1a {

   public static void main(String[] args) {
	//    	Examples of Creation of Strings
	StringBuffer strBuf1 = new StringBuffer("Bobby");
	StringBuffer strBuf2 = new StringBuffer(100); //With capacity 100
	StringBuffer strBuf3 = new StringBuffer(); //Default Capacity 16
	System.out.println("strBuf1 : " + strBuf1);
	System.out.println("strBuf1 capacity : " + strBuf1.capacity());
	System.out.println("strBuf2 capacity : " + strBuf2.capacity());
	System.out.println("strBuf3 capacity : " + strBuf3.capacity());
	System.out.println("strBuf1 length : " + strBuf1.length());
	System.out.println("strBuf1 charAt 2 : " + strBuf1.charAt(2));
	// A StringIndexOutOfBoundsException is thrown if 
        // the index is not valid.
	strBuf1.setCharAt(1, 't');
	System.out.println("strBuf1 after setCharAt 1 to t is : "
				+ strBuf1);
	System.out.println("strBuf1 toString() is : " + strBuf1.toString());
	strBuf3.append("beginner-java-tutorial");
	System.out.println("strBuf3 when appended with a String : "
				+ strBuf3.toString());
	strBuf3.insert(1, 'c');
	System.out.println("strBuf3 when c is inserted at 1 : "
				+ strBuf3.toString());
	strBuf3.delete(3, 'g');
	System.out.println("strBuf3 when g is deleted at 3 : "
				+ strBuf3.toString());
	strBuf3.reverse();
	System.out.println("Reversed strBuf3 : " + strBuf3);
	strBuf2.setLength(5);
	strBuf2.append("jdbc-tutorial");
	System.out.println("strBuf2 : " + strBuf2);
	// We can clear a StringBuffer using the following line
	strBuf2.setLength(0);
	System.out.println("strBuf2 when cleared using setLength(0): "
				+ strBuf2);
	} // main
} //StringBufferFunctionsDemo1.java