integertest.java

来自「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」· Java 代码 · 共 39 行

/**
 * 专家导学：Java面向对象编程
 */
package chapter3;

/**
 * @author Administrator
 *
 */
public class integerTest {
	
	public static void main(String args[])
		{
				byte b= -128;
				byte b1=-129; //byte类型数的范围是：－128 到127
				byte b2 = 127;
				byte b3=128; //byte类型数的范围是：－128 到127
				byte b4=12.0; //byte类型数的范围是：－128 到127
				
				short s= -32768;
				short s1= -32769; //short 类型数的范围是-32768到32767
				short s2= 32767;
				short s2= 32768; //short 类型数的范围是-32768到32767
				
				int i = -2147483648;
				int i1 = -2147483649; //int 类型数的范围是-2147483648到2147483647
				int i2 = 2147483647;
				int i3 = 2147483648; //int 类型数的范围是-2147483648到2147483647
				
				long l = -9223372036854775808L;//长整型数后加”L”
				long l1 = -9223372036854775809L;
		        //长整型数的范围是-9223372036854775808L到9223372036854775807
				long l2 = 9223372036854775807L;
				long l3 = 9223372036854775808L;
			
		}

}