sort an array by a column java code example

Example 1: arrays sort 2d array java

Arrays.sort(myArr,(double[] a,double[] b)->{
                //here multiple lines of code can be placed
                return a[0]-b[0]; 
            });

Example 2: How to sort 2d array in java using stream api

Arrays.sort(myArr, (a, b) -> a[0] - b[0]);