Question

求教java replaceAll正则表达式写法

Answer 1

啥都不说了，直接上代码
String content = "1: In a newly-released report, IEA said it expected oil prices to start picking up in 2017.";

tmp = content.replaceAll( "\\d{1}" , "china");
System.out.println(tmp);

tmp = content.replaceAll( "\\d{2}" , "china");
System.out.println(tmp);

tmp = content.replaceAll( "\\d{3}" , "china");
System.out.println(tmp);

tmp = content.replaceAll( "\\d{4}" , "china");
System.out.println(tmp);

tmp = content.replaceAll( "\\d+" , "china");
System.out.println(tmp);