Home >Java >javaTutorial >A simple example of using reflection to obtain static variable names and variable values in Java classes
JAVA can obtain the names of member variables and static variables through reflection, but local variables are unlikely to be obtained.
public class Test { public static void main(String[] args) throws Exception { // TODO Auto-generated method stub //获取所有变量的值 Class clazz = Class.forName("com.qianmingxs.ScoreTable"); Field[] fields = clazz.getFields(); for( Field field : fields ){ System.out.println( field.getName() + " " +field.getInt(clazz) ); } //获取单个变量的值 /*Class clazz = Class.forName("com.qianmingxs.ScoreTable"); Field field = clazz.getField("FIVE"); System.out.println( field.getInt(clazz));*/ } }
The Java class to be viewed is:
public class ScoreTable { private ScoreTable() {} public final static int FIVE = 100;//成5 public final static int DOUBLE_ALIVE_FOUR = 99;//双活4(分析对手用) public final static int ALIVE_FOUR_AND_DEAD_FOUR = 98;//活4死4(对手分析用) public final static int ALIVE_FOUR_AND_ALIVE_THREE = 96;//活4活3(分析对手用) public final static int ALIVE_FOUR_AND_DEAD_THREE = 95;//活4死3(分析对手用) public final static int ALIVE_FOUR_AND_ALIVE_TWO = 94;//活4活2 public final static int ALIVE_FOUR = 93;//活4 public final static int DOUBLE_DEAD_FOUR = 92;//双死4 public final static int DEAD_FOUR_AND_ALIVE_THREE = 91;//死4活3 public final static int DEAD_FOUR_AND_ALIVE_TWO = 90;//死4活2 public final static int DOUBLE_ALIVE_THREE = 80;//双活3 public final static int ALIVE_THREE_AND_DEAD_THREE = 70;//活死3 public final static int HALF_ALIVE_FOUR = 65;//半活4(类似○○ ○形),优先级小于活4 public final static int ALIVE_THREE = 60;//活3 public final static int DEAD_FOUR = 50;//死4 public final static int DOUBLE_ALIVE_TWO = 40;//双活2 public final static int DEAD_THREE = 30;//死3 public final static int ALIVE_TWO = 20;//活2 public final static int DEAD_TWO = 10;//死2 public final static int SINGLE = 0;//单个 }
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