import java.lang.String.*;
public class StringExample
{ public static void main(String args[])
{ String s1=new String("you are a student"),
s2=new String("how are you");
if(s1.equals(s2))
{
System.out.println("s1与s2相同");
}
else
{
System.out.println("s1与s2不相同");
}
String s3=new String("22030219851022024");
if(s3.startsWith("220302"))
{
System.out.println("吉林省的身份证");
}
String s4=new String("你");
String s5=new String("我");
if(s4.compareTo(s5)>0)
{
System.out.println("按字典序s4大于s5");
}
else
{
System.out.println("按字典序s4小于s5");
}
int position=0;
String path="c:\\java\\jsp\\A.java";
position = path.lastIndexOf("\\");
System.out.println("c:\\java\\jsp\\A.java中最后出现\\的位置:"+position);
String fileName=path.substring(15,21);
System.out.println("c:\\java\\jsp\\A.java中含有的文件名:"+fileName);
String s6=new String("100");
String s7=new String("123.678");
int n1=(int)100;
double n2=(double)123.678;
double m=n1+n2;
System.out.println(m);
String s8= String.value0f(m);
position=s8.index0f(".");
String temp=s8.substring(position+1);
System.out.println("数字"+m+"有"+temp.length()+"位小数");
String s9=new String("ABCDEF");
char a[]=s8.toCharArray();
for(int i=a.length-1;i>=0;i--)
{
System.out.print(" "+a[i]);
}
}
}