正则表达式的替换功能
String类的功能:public String replaceAll(String regex,String replacement)
public class MyTest {
public static void main(String[] args) {
//A:
//正则表达式的替换功能
//String类的功能:public String replaceAll (String regex, String replacement)
//B:
//案例演示
System.out.println("奥巴马是美国总统".replace("奥巴马", "*"));
String str="a12133b2323233222cewrere1243434aadfd888";
// System.out.println(str.replace(" ", ""));
System.out.println(str.replaceAll("[0-9]+", ""));
}
}