java基本数据类型练习

package javafirst;//包名

public class JavaFirstDay {
	//基本数据类型的练习
	public static void main(String[] args)
	{
		byte byteOne = 125;
		short shortOne = 12345;
		int intOne = 2345;
		long longOne = 123l;//默认为int
		float floatOne = 12.3f;//默认为double
		double doubleOne = 12.3;

		//char变量赋值的三种形式
		char charOne = 'z';
		char charTwo = '中';
		char charThree = 99;

		boolean isBool = false;//布尔型

		final int finalInt = 12;//常量

		System.out.println("byteOne = "+byteOne);

		System.out.println("shortOne + 123 = "+ (shortOne + 123));//带括号转变为算术
		System.out.println("shortOne123 = " + shortOne + 123);//不带括号作为字符串连接

		System.out.print("intOne + 123 = ");
		System.out.println(intOne + 123);//无字符串连接为算术运算

		System.out.print("charThree = "+charThree+"\n换行符的练习");//转义字符

	}

}