java substring 截取

     String str = "sseedd";
	String newStr = str.subString(0,str.indexOf("e"));
	輸出：sse
	String str = "sseedd";
	String newStr = str.subString(str.indexOf("s"),str.lastindexOf("e"));
	輸出：sse	

截取第三個分號之前的數據
String bb = "a11;b22;c33;d44;444";
		System.out.println(bb.substring(0, bb.indexOf(";", bb.indexOf(";", bb.indexOf(";", 0)+1)+1)));