Count negative number in a matrix

Write a java program to count negative number in a matrix :

import java.util.Scanner;

public class CountNegValue {

public static void main(String[] args) {

int a[][]=readmatrix();

dispMat(a);

int count=countNeg(a);

System.out.println("Entered negative number is : "+count);

}

static int[][] readmatrix(){

Scanner sc=new Scanner(System.in);

System.out.println("Enter Row size and column size :");

int row=sc.nextInt();

int col=sc.nextInt();

int mat[][]=new int[row][col];

System.out.println("Enter Elements in Table : ");

for(int i=0;i<row;i++) {

for(int j=0;j<col;j++) {

mat[i][j]=sc.nextInt();

}

}return mat;

}

static void dispMat(int mat[][]) {

  for(int i=0;i<mat.length;i++) {

for(int j=0;j<mat[i].length;j++) {

System.out.print(mat[i][j]+" ");

}System.out.println();

}

  }

static int countNeg(int mat[][]) {

int count=0;

for(int i=0;i<mat.length;i++) {

for(int j=0;j<mat[i].length;j++) {

if(mat[i][j]<0) {

count++;

}

}

}return count;

}

}