参考代码:
import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); int value = scanner.nextInt(); int n1 = scanner.nextInt(); int n2 = scanner.nextInt(); System.out.println(getbits(value, n1, n2)); } public static int getbits(int a, int n1, int n2) { int b = 0; for(int i = n1; i <= n2; i++) b += 1 << i; return a & b; } }
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