How to assign values ​​to a two-dimensional array in java

1. Assignment concept

Use double subscripts to access elements in a two-dimensional array:

The first subscript represents: row number (under high dimensions mark).

The second subscript represents: column number (low-dimensional subscript).

2. Assignment examples

(1) Assignment: Starting from the highest dimension, allocate space for each dimension, for example:

String s[][] = new String[2][];
s[0] = new String[2];
s[1] = new String[3];
s[0][0] = new String("Good");
s[0][1] = new String("Luck");
s[1][0] = new String("to");
s[1][1] = new String("you");
s[1][2] = new String("!");

( 2) Output

for (int i=0; i<s.length;i++){
    for (String s1:s[i]){
        System.out.print(s1 +' ');
    }
}

result

Good Luck to you !

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