strdemo.java

非常好的JAVA学习资料

public class StrDemo{
  public static void main(String[] args) {
    String st1="Jack", st2="Brown";
    String name=st1+" "+st2;
    System.out.println("Name = "+name);
    double pi=3.1415926;
    String stt="Hello,"+st1;
    System.out.println(stt+pi+2);
    System.out.println(pi+2+stt);
  }
}