What does && do/mean when assigning ? JAVA

Question

I know that && can be used to check if the both conditions are satisfied when it is used in a conditional statement but how do you explain
full[i][j] = open[i][j] && full[i - 1][j]; ??
In case we are reading this piece of code how do we explain this?

Notice that full and open are two 2D Boolean arrays

//i = column j = row
for (int i = 1; i < N; i++) {
            for (int j = 0; j < N; j++) {
                full[i][j] = open[i][j] && full[i - 1][j];
               //^^ what happens here?
}

Answer 1

 full[i][j] = open[i][j] && full[i - 1][j];

意味着[i][j] && full[i - 1][j]将解析为布尔值并将其分配为另一个数组中的布尔元素。

Answer 2

I think (Not 100% sure) that it is assigning values, When we are using primitive data types we can use a single & to do bit wise anding, While we are doing the same for boolean values,

full[i][j] = open[i][j] && full[i - 1][j]; 

Means we are assigning anded boolean value of open[i][j] and full[i-1][j] to full[i][j] .

Answer 3

By default all the values of full array are false.

Initially for i=1 and j=0. Value of full[0][0] will false. So whatever open[][] value is , full[1][0] will have false value.

Correct me if I understand your question worong.