zj-Exercise/java-Eclipse/day03/VariableTest4.java

class VariableTest4{
	public static void main(String[] args){
		long l = 123123;
		System.out.println(l);
		//long l1 = 21332123235234123;
		//编译失败：过大的整数
		long l1 = 21332123235234123l;

		//****************************
		//float f1 = 12.3;
		//编译失败

		//2、编码情况2
		//整型常量，默认类型为int型
		//浮点型常量，默认类型为double型
		byte b =12;
		//byte b1 = b + 1;//编译失败
		//float f1 = b +12.3;//编译失败
	}
}