app11_7.java

Java范例程序ch11-13.rar

// app11_7, String类使用的范例
public class app11_7  
{
   public static void main(String args[])
   {
      String str="Hello Java!!";
      System.out.println("charAt(6)="+str.charAt(6));
      System.out.println("length="+str.length());
      System.out.println("sub string="+str.substring(6)); 
      System.out.println("start with \"He\"="+str.startsWith("He"));
      System.out.println("upper case="+str.toUpperCase());
   }
}