Java program to make 2-D Array with different columns for each row.

2DArrayNew.java

public class array {
    public static void main(String[] args) {
        int m1[][]=new int[2][];
        m1[0]=new int[1];
        m1[1]=new int[2];
        m1[0][0]=1;
        //m1[0][1]=2;
        m1[1][0]=3;
        m1[1][1]=4;
        System.out.println(m1[0][0]);
        //System.out.println(m1[0][1]);
        System.out.println(m1[1][0]);
        System.out.println(m1[1][1]);
    }
}