package ch3;
/**
 * 1、变量作用域问题,成员变量、局部变量作用域:在其所在的花括号之内有效
 */

public class TestVar {
	
	static int j; //成员变量、属性
	
	public void m() {
		int i = 0;
		System.out.println(i);
	}
	
	public static void main(String[] args) {
		int i = 0; 
		System.out.println(i);
		System.out.println(j);
		
		boolean b = false;
		if(b) {
			int c = 0;
			System.out.println(b == true);
		}
		//System.out.println(c); //错误:变量c已在作用域之外
		
		//long longNum1 =わ 8888888888888; //不写L会出错,默认的8888888888888为int类型,超出int值最大范围
		long longNum2 = 8888888888888L;
		
	}
	
	
}