字符串valueOf方法。

public class Main 

{

   public static void main(String[] args)/** 来自 时代Java - N o w  J a v a . c o m**/

   {

      char[] charArray = {'a', 'b', 'c', 'd', 'e', 'f'};

      boolean booleanValue = true;

      char characterValue = 'Z';

      int integerValue = 7;

      long longValue = 10000000001L; // L suffix indicates long

      float floatValue = 2.5f; // f indicates that 2.5 is a float

      double doubleValue = 133.333; // no suffix, double is default

      Object objectRef = "hello"; // assign string to an Object reference


      System.out.printf(

         "char array = %s\n", String.valueOf(charArray));

      System.out.printf("part of char array = %s\n", 

         String.valueOf(charArray, 3, 3));
         /**
         时 代 J a v a - nowjava.com
         **/

      System.out.printf(

         "boolean = %s\n", String.valueOf(booleanValue));

      System.out.printf(

         "char = %s\n", String.valueOf(characterValue));

      System.out.printf("int = %s\n", String.valueOf(integerValue));

      System.out.printf("long = %s\n", String.valueOf(longValue));