modifystrbuftest.java.bak

Java程序设计培训教程2

public class ModifyStrBufTest{
	public static void main(String args[]){
		StringBuffer sourceStr = new StringBuffer("This is a stringbuffer modifying example!");
		System.out.println("Source String:" + sourceStr);
		String subStr  = "very good!";
		char charObj   = '*';
		sourceStr.setCharAt(4,charObj);
		System.out.println("After setting char '*' at 4:" + sourceStr);
		sourceStr.deleteCharAt(4);
		System.out.println("After deleting char at 4:"+sourceStr);
		sourceStr.append("hello");
		System.out.println("After appending sub string 'hello':" + sourceStr);
		sourceStr.insert(0,subStr);
		System.out.println("After inserting sub string:" + sourceStr);
		sourceSTr.delete(1,6);
		System.out.println("After deleting sub string:"+sourceStr);
	}
}