test2.java

本书结合作者丰富的实践经验和深厚的理论基础

//Test2.Java
public class Test2
{
        public static void main(String args[])
   {
          char[] c;
int i;
          double d;
          float f;
          String s1=new String("I love Java ");
          String s2=new String("100");
          String s3=new String("3.1415 ");
          String s4=new String("123.456 ");
          c=s1.toCharArray();
          i=Integer.parseInt(s2);
          f=Float.parseFloat(s3);
          d=Double.parseDouble(s4);
          System.out.println("c ="+c);
          System.out.println("i ="+i);
          System.out.println("f ="+f);
          System.out.println("d ="+d);
   }
}