How to define array length in java

Array definition in java:

There are two syntaxes for defining arrays in Java:

type arrayName[];
type[] arrayName;
type is any data type in Java, including basic types and combined types. arrayName is the array name and must be a legal identifier. [ ] indicates that the variable is An array type variable. For example:

int demoArray[];int[] demoArray;

There is no difference between these two forms, and the usage effect is exactly the same. You can choose according to your own programming habits.

String array:

##1、String[] str=new String[5]

2、String[] str= new String[]{"a","b"}

3. String[] str={"a","b"}

Integer array:

1. int[] i=new int[5]

2, int[] i=new int[]{0,1}
3, int[] i={0,1}

Other array definition methods are similar.

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