Java USES a for loop to output the Yang hui triangle

  The idea is to create an integer two-dimensional array with 10 one-dimensional arrays. Use a double-layer loop to initialize the size of each second-level array in the outer loop. In the inner loop, the array elements on both sides are first assigned a value of 1, the other values are calculated by the formula, and then the array elements are output.

public class YanghuiTriangle {
    public static void main(String[] args) {
        int triangle[][]=new int[10][];//Create a two-dimensional array
        //Traverses the first layer of a two-dimensional array
        for (int i = 0; i < triangle.length; i++) {
            triangle[i]=new int[i+1];//Initializes the size of the second level array
            //Iterate through the second level array
            for(int j=0;j<=i;j++){
                //Assign the array elements on both sides to 1
                if(i==0||j==0||j==i){
                    triangle[i][j]=1;
                }else{//Other values are calculated by formula
                    triangle[i][j]=triangle[i-1][j]+triangle[i-1][j-1];
                }
                System.out.print(triangle[i][j]+"t");         //Output array element
            }
            System.out.println();               //A newline
        }
    }
}