public class Test {
    public static void main(String arg[]) {
        int a[][] = { { 1, 2 }, { 3, 4 } };
        int b[][] = { { 1, 2 }, { 3, 4 } };
        int c[][] = { { 1, 2 }, { 3, 5 } };
        System.out.println("a=b? the result is "+compare(a,b));
        System.out.println("a=c? the result is "+compare(a,c));
    }

    public static boolean compare(int t1[][], int t2[][]) {
        boolean result = true;
        if (t1.length != t2.length) {
            result = false;
        } else {
            for (int i = 0; i < t1.length; i++) {
                for (int j = 0; j < t1[i].length; j++) {
                    if (t1[i][j] != t2[i][j]) {
                        result = false;
                    }
                }
            }
        }

        return result;
    }
}

------解决方案--------------------
public static void main(String [] args) throws Exception
	{  
		int [][] a = new int[][]{{3,4,5},{2,3}};
		int [][] b = new int[][]{{3,4,5},{2,3}};
		int [][] c = new int[][]{{3,4,5},{1,3}};
		
		System.out.println(equals(a,b));
		System.out.println(equals(a,c));
	}
	
	public static boolean equals(int [][] a, int [][] b)
	{
		boolean result = true;
		if(a.length == b.length)
		{
			for(int i = 0; i < a.length; i ++)
			{
				int [] ai = a[i];
				int [] bi = b[i];
				if(! Arrays.equals(ai, bi))
				{
					result = false;
					break;
				}
			}
		}else
		{
			result = false;
		}
		return result;
	}

------解决方案--------------------
遍历比较