integerint.java

Java 程序设计源码 只提供了部分

class IntegerInt
{
        public static void main(String[] args)
        {
                int i = 3; 
                Integer in = new Integer(i);                
                int j = in.intValue();
                
                System.out.println("j = " + j);
                
                String str = in.toString();
                
                System.out.println("str = " + str);
                
                String str2 = "123";
                
                System.out.println(Integer.valueOf(str2));
                
                
               
               
        }
}