StringBufferBuilderExamples.java

package concept.examples.string;

public class StringBufferBuilderExamples {
	public static void main(String[] args) {
		// StringBuffer and StringBuilder are used when you want to modify
		// object values.
		StringBuffer stringbuffer = new StringBuffer("12345");
		stringbuffer.append("6789");
		System.out.println(stringbuffer); // 123456789
		// All StringBuffer methods modify the value of the object.

		StringBuilder sb = new StringBuilder("0123456789");
		// StringBuilder delete(int startIndex, int endIndexPlusOne)
		System.out.println(sb.delete(3, 7));// 012789

		StringBuilder sb1 = new StringBuilder("abcdefgh");
		// StringBuilder insert(int indext, String whatToInsert)
		System.out.println(sb1.insert(3, "ABCD"));// abcABCDdefgh

		StringBuilder sb2 = new StringBuilder("abcdefgh");
		// StringBuilder reverse()
		System.out.println(sb2.reverse());// hgfedcba

		// Similar functions exist in StringBuffer also

		// All functions also return a reference to the object after modifying
		// it.
		// This allows a concept called method chaining.
		StringBuilder sb3 = new StringBuilder("abcdefgh");
		System.out.println(sb3.reverse().delete(5, 6).insert(3, "---"));// hgf---edba

	}
}