package top.qaqaq.java.P140;
/*
 * ⑤ 数组元素的默认初始化值
 * 		> 数组元素是整形：0
 * 		> 数组元素是浮点型：0.0
 * 		> 数组元素是char型：0 或 '\u0000'，而非'0'
 * 		> 数组元素是boolean型：false
 * 
 * 		> 数组元素是引用数据类型：null
 * 
 * ⑥ 数组的内存解析
 * 
 */

public class ArrayTest1 {
	
	public static void main(String[] args) {
		//5. 数组元素的默认初始化值
		int[] arr = new int[4];
		for(int i = 0; i < arr.length; i++) {
			System.out.println(arr[i]);
		}
		
		System.out.println("****************");
		
		short[] arr1 = new short[4];
		for(int i = 0; i < arr1.length; i++) {
			System.out.println(arr1[i]);
		}
		
		System.out.println("****************");
		
		float[] arr2 = new float[5];
		for(int i = 0; i < arr2.length; i++) {
			System.out.println(arr2[i]);
		}
		
		System.out.println("****************");
		
		char[] arr3 = new char[4];
		for(int i = 0; i < arr3.length; i++) {
			System.out.println("----" + arr3[i] + "****");
		}
		
		if(arr3[0] == 0) {
			System.out.println("你好");
		}
		
		System.out.println("****************");
		
		boolean[] arr4 = new boolean[5];
		System.out.println(arr4[0]);
		
		System.out.println("****************");
		
		String[] arr5 = new String[5];
		System.out.println(arr5[0]);
		
		if(arr5[0] == null) {
			System.out.println("北京天气不错！ ");
		}
		
	}

}