charcodecalcs.java

Java面向对象编程(随书配套源代码) 阐述了面向对象编程的思想

package chapter3;
public class CharCodeCalcs 
{
	public static void main(String[] args) 
	{
		char letter1='A';
		int iletter2 = letter1 +1;//letter1包含的字符‘A’的Unicode码值加1后，赋值给int型变量
		char letter2= (char)iletter2;//将整型的iletter2 强制转换为char;
        //字符letter2Unicode码值加1后，强制转换为char,赋值给letter3;
		char letter3= (char) (letter2 + 1); 
		
		System.out.println(letter1 + "  " +letter2 + "  "+letter3);
		System.out.println((int)letter1 + "  " + (int)letter2 + "  " + (int)letter3);	
	}
}