java對數組的操作

//一維數組

String[] str = new String[5]; //創建一個長度爲5的String(字符串)型的一維數組

str[0] = "a"; //賦值

str[1] = "b";

str[2] = "c";

str[3] = "d";

str[4] = "e";

//也可以創建並賦值

String[] str = {"a","b","c","d","e"};

//二維數組

String[][] str = new String[2][2]; //創建一個2行2列的二維數組

str[0][0] = "a0"; //賦值

str[0][1] = "a1";

str[1][0] = "b0";

str[1][1] = "b1";

//也可以創建並賦值

String[][] str = {{"a0","a1"},{"b0","b1"}};

總結:

類型名[]/[][] 變量名 = new 類型名[]/[][];