Largest Rectangle in Histogram

public class Solution {
public int bound;

public int largestRectangleArea(int[] height) {
// Start typing your C/C++ solution below
// DO NOT write int main() function
int max = 0;
int len = height.length;
bound = 0;
for (int i = 0; i < len; i++)
bound += height[i];

for (int i = len - 1; i >= 0; i--) {
if (bound > max) {
int wide = 1;
for (int j = i - 1; j >= 0; j--)
if (height[j] >= height[i])
wide++;
else
break;
for (int j = i + 1; j < len; j++)
if (height[j] >= height[i])
wide++;
else
break;

int tem = height[i] * wide;
if (tem > max)
max = tem;
}
}
return max;
}
}