if选择结构

package Base;

import java.util.Scanner;

public class Demo6 {

public static void main(String[] args) {
	// TODO Auto-generated method stub
	Scanner scanner=new Scanner(System.in);
	System.out.println("请输入数据：");
	int score=scanner.nextInt();
	if(score==100) {
		System.out.println("恭喜满分");
	}
	else if(score>=90&&score<100) {
		System.out.println("A");
	}
	else if(score>=80&&score<90) {
		System.out.println("B");
	}
	else if(score>=70&&score<80) {
		System.out.println("c");
	}
	else if(score>=60&&score<70) {
		System.out.println("D");
	}
	else if(score>=0&&score<60) {
		System.out.println("不及格");
	}else {
		System.out.println("输入的数违规");
	}
	scanner.close();	
}

}