java 遍历 map对象 很暴力想得到什么就得到什么

Map<String,MateMatrix> mate=cahe.getAllMateMatrixs();

Set<Map.Entry<String,MateMatrix>> set = mate.entrySet();

for(Iterator<Map.Entry<String, MateMatrix>> it = set.iterator(); it.hasNext();){

Map.Entry<String, MateMatrix> entry = (Map.Entry<String, MateMatrix>) it.next();

System.out.println(entry.getKey() + "--->" + entry.getValue().getDescription());

}