动态初始化:
public class DynamicArray { public static void main(String[] args) { int i = 5; int[] arrayA = new int[5];//动态数组的标准分配 arrayA[0] = 1; arrayA[1] = 2; arrayA[2] = 3; System.out.printf("%d\n%d\n%d\n", arrayA[0], arrayA[1], arrayA[2]); int[] arrayB;//动态数组分步分配 arrayB = new int[i]; arrayB[0] = 4; arrayB[1] = 5; arrayB[2] = 6; System.out.printf("%d\n%d\n%d\n", arrayB[0], arrayB[1], arrayB[2]); } }
静态初始化:
public class StaticArray { public static void main(String[] args) { int[] arrayA = new int[]{10, 20, 30};//静态数组标准分配 System.out.printf("%d\n%d\n%d\n", arrayA[0], arrayA[1], arrayA[2]); arrayA[0] = 20; System.out.printf("%d\n%d\n%d\n", arrayA[0], arrayA[1], arrayA[2]); char[] arrayB; arrayB = new char[]{'大', '来', '嘞'}; System.out.printf("%c\n%c\n%c\n", arrayB[0], arrayB[1], arrayB[2]);//静态数组两步骤分配 int[] arrayC = {30, 40, 50};// 静态数组省略式分配,注意省略不可以分两步骤 System.out.printf("%d\n%d\n%d\n", arrayA[0], arrayA[1], arrayA[2]); } }
发布者:全栈程序员-站长,转载请注明出处:https://javaforall.net/175909.html原文链接:https://javaforall.net
