代码实例图:

package judgment;
/**
 * 计算下面级数之和
 * 1/3+3/5+5/7+...+97/99;
 */
public class Judgment {
    public static void main(String[] args) {
        double num=0;
        for (int i = 1; i <=97; i+=2) {
            num+=i/(i+2.0);
        }
        System.out.println(num);
    }
}

结果示例图