text: Program to check if a matrix is symmetric | Efficient Java code for check a matrix is symmetric or no ; Returns true if mat [ N ] [ N ] is symmetric , else false ; Driver code
code: import java . io . * ; class GFG { static int MAX = 100 ; static boolean isSymmetric ( int mat [ ] [ ] , int N ) { for ( int i = 0 ; i < N ; i ++ ) for ( int j = 0 ; j < N ; j ++ ) if ( mat [ i ] [ j ] != mat [ j ] [ i ] ) return false ; return true ; } public static void main ( String [ ] args ) { int mat [ ] [ ] = { { 1 , 3 , 5 } , { 3 , 2 , 4 } , { 5 , 4 , 1 } } ; if ( isSymmetric ( mat , 3 ) ) System . out . println ( " Yes " ) ; else System . out . println ( " NO " ) ; } }