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java中使用switch case報錯case expressions must be constant expressions
一、發現問題
private int CLICK_QUERY = 1;
private int CLICK_RESET = 2;
@Override
public void onClick(View v)
{
int tag = (Integer) v.getTag();
switch (tag)
{
case CLICK_QUERY:
query();
break;
case CLICK_RESET:
reset();
break;
}
}
編譯時一直報錯：CLICK_QUERY 和CLICK_RESET——case expressions must be constant expressions
二、解決問題
case後麵必須跟常量，必須要常量，將上麵兩個變量聲明為final即可。
private final int CLICK_QUERY = 1;
private final int CLICK_RESET = 2;
最後更新：2017-04-04 02:25:10