數組的2種初始化方式

public class AgeDemo {
	public static void main(String[] args) {
		int[] age = {0, 3, 2, 23};
		System.out.println(age[2]);
		System.out.println(age.length);
		for(int x = 0; x < age.length; x++) {
			System.out.println(age[x]);
		}
		
		
	}
}


D:\subline\lesson011>java AgeDemo
2
4
0
3
2
23

D:\subline\lesson011>

第二種java

public class AgeDemo {
	public static void main(String[] args) {
		int[] age = new int[4];
		System.out.println(age[2]);
		System.out.println(age.length);
		for(int x = 0; x < age.length; x++) {
			System.out.println(age[x]);
		}
		
		
	}
}



D:\subline\lesson011>java AgeDemo
0
4
0
0
0
0

D:\subline\lesson011>
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