Java array declaration methods and java array declaration Methods

Java array declaration methods and java array declaration Methods
Java array definition declaration methods:

1. type name [] variable name = new type name [length];

2. type name [] variable name = {?,?,?};

3. type name [] variable name = new type name [] {?,?,?};

Sample Code:

Public class Example1 {public static void main (String [] args) {// Several methods defined by arrays // 1. type name [] variable name = new type name [length]; int [] a = new int [4]; a [0] = 1; a [1] = 2; a [2] = 3; a [3] = 4; System. out. println (a); System. out. println (a [0]); System. out. println (a [1]); System. out. println (a [2]); System. out. println (a [3]); // 2. type name [] variable name = {?,?,?}; Int [] B = {1, 2, 4}; System. out. println (B [0]); System. out. println (B [1]); System. out. println (B [2]); System. out. println (B [3]); // 3. type name [] variable name = new type name [] {?,?,?}; Int [] c = new int [] {1, 2, 3, 6}; System. out. println (c [0]); System. out. println (c [1]); System. out. println (c [2]); System. out. println (c [3]) ;}}

Three methods are displayed separately on the overview page:

1. type name [] variable name = new type name [length];

// 1. type name [] variable name = new type name [length]; int [] a = new int [4]; a [0] = 1; a [1] = 2; a [2] = 3; a [3] = 4; System. out. println (a); System. out. println (a [0]); System. out. println (a [1]); System. out. println (a [2]); System. out. println (a [3]);

Method 1:

 

2. type name [] variable name = {?,?,?};

// 2. type name [] variable name = {?,?,?}; Int [] B = {1, 2, 4}; System. out. println (B [0]); System. out. println (B [1]); System. out. println (B [2]); System. out. println (B [3]);

Method 2:

 

3. type name [] variable name = new type name [] {?,?,?};

// 3. type name [] variable name = new type name [] {?,?,?}; Int [] c = new int [] {1, 2, 3, 6}; System. out. println (c [0]); System. out. println (c [1]); System. out. println (c [2]); System. out. println (c [3]);

Method 3: