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How to declare a one-dimensional array in java

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2023-05-10 17:55:061360browse

1. Definition

An array is a reference data type composed of the same type of data in sequence.

2. Declaration

Syntax format

数据类型[] 数组名; int[] myIntArray; char[] ch; String[] strArray;

Data type

数组名[]; int myIntArray[]; char[] ch; String strArray[];

3.Creation method

//数组创建1:引用,对象,元素
int[] aa;
int[] a = new int[10];
int[] aaa = new int[0]; //空数组
//创建方式2:声明,创建,
int[] b = new int[] {1,2};
String[] strings = new String[] {"Hello World"};
//创建方式3:
int[] c = {1,2,3};
String[] strings2 = {"World"};

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