Array for all programming languages is one of the important data structure, the Java language provides an array is used to store a fixed size is the same type of element,

A one-dimensional array:

1, the array declaration

Byte [] arrByte;

Int [] arrInt;

Char [] arrChar;

String [] arrStr;

Note: String arrStr1 []; Support on syntax, but don't write

2, array initialization

(1) static initialization

ArrByte=new byte [] {1, 2, 3, 4, 5};

Or an array variable declaration and initial enter a complete statement

Byte [] arrByte1=new byte [] {1, 2, 3, 4, 5};

(2) dynamic initialization

ArrInt=new int [4].

Or an array variable declaration and initial enter a complete statement

Int [] arrInt=new int [4].

3, assignment and values

(1) manual assignment

ArrInt [0]=1; ArrInt [1]=2; ArrInt [2]=3;

(2) the traversal assignment

for(int i=0; i
ArrInt [I]=I;

}

(3) traversal values

For (int I=0; i
System. The out. Println (arrInt [I]);

}

A two-dimensional array:

Two-dimensional array declaration, initialization and reference similar to the one dimensional array:

* the sample code: *



Note: the Java language, a two-dimensional array is considered an array of arrays, array space is not continuous distribution, so does not require a two-dimensional array of each dimension the same size,

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