String截取问题

Question

• {invest_trade_id=1}，求代码截取出1的位置的值，就是=到}中间的数值

Answer 1

public static void main(String[] args) {String str = "{invest_trade_id=1}";System.out.println(str.substring(str.indexOf("=")+1,str.indexOf("}")));}[/code]结果：1[code="java"]public static void main(String[] args) {String str = "{invest_trade_id=1xx}";System.out.println(str.substring(str.indexOf("=")+1,str.indexOf("}")));}

Answer 2

String[] arry = "{invest_trade_id=1}".split("=");StringBuffer buffer = new StringBuffer(arry[1]);String value = buffer.deleteCharAt(arry[1].length()-1).toString();