java代码如何声明和定义数组呢?

声明和定义数组的方法

定义方法:
    type [] arraryName = {*,*,*,*};
赋值方法:
    type[0] = "***";

 
//原始类型数组 
package com.java265;
import java.util.Arrays;
public class ArrayExample1 {
    public static void main(String[] args) {
 
        //定义数组
        int[] num1 = new int[5];
        int[] num2 = {1, 2, 3, 4, 5};
        int[] num3 = new int[]{1, 2, 3, 4, 5};
 
		//数组索引从0开始
        num1[0] = 1;
        num1[1] = 2;
        num1[2] = 3;
        num1[3] = 4;
        num1[4] = 5;
 
		//打印数组
        System.out.println(Arrays.toString(num1));
        System.out.println(Arrays.toString(num2));
        System.out.println(Arrays.toString(num3));
    }
}
 
//对象类型数组  
package com.java265;
import java.util.Arrays;
public class ArrayExample1 {
    public static void main(String[] args) {
        String[] str1 = new String[5];
        String[] str2 = {"a", "b", "c", "d", "e"};
        String[] str3 = new String[]{"a", "b", "c", "d", "e"};
 
        str1[0] = "a";
        str1[1] = "b";
        str1[2] = "c";
        str1[3] = "d";
        str1[4] = "e";
 
        System.out.println(Arrays.toString(str1));
        System.out.println(Arrays.toString(str2));
        System.out.println(Arrays.toString(str3));
    }
}