Java基础强化练习题2（附答案）(4)

System.out.println(\平均成绩: \ }

else if (\ System.out.print(\请输入您要查询的学生姓名： \ String student = scanner.next().trim(); int i = 0; for (; i < students.length; i++) { //如果查找到某个学生的信息，退出当前循环 空白处4 }

if ( 空白处5 ) {

System.out.println((i + 1) + \学生姓名：\成绩：\scores[i]); } else { System.out.println(\对不起，找不到学员的信息。\ } } else if (\ System.out.println(\谢谢使用**********\ break; } } scanner.close(); } }

(1). 下列选项中，能填入空白处1的代码是( ) A. Scanner scanner = new Scanner(System.out); B. Scanner scanner = new Scanner(System.in);

C. Scanner scanner = new Scanner(new FileInputStream(System.in)); D. Scanner scanner = new Scanner(new FileOutputStream(System.out)); 正确答案：B

(2). 下列选项中，能填入空白处2的代码是( ) A. scores[i] = scanner.nextInt(); B. scores[i] = scanner.next();

C. scores[i] = scanner.nextDouble(); D. scores[i] = scanner.nextString(); 正确答案：A

(3). 下列选项中，能填入空白处3的代码是( ) A. avg *= scores.length; B. avg /= scores.length; C. avg *= scores.length-1; D. avg /= scores.length-1;

正确答案：B

(4). 下列选项中，能填入空白处4的代码是( )

A. if (student.equalsIgnoreCase(students[i-1])) { break; } B. if (student.equalsIgnoreCase(students[i])) { continue; } C. if (student.equalsIgnoreCase(students[i-1])) { continue; } D. if (student.equalsIgnoreCase(students[i])) { break; } 正确答案：D

(5). 下列选项中，能填入空白处5的代码是( ) A. scores.length < scores.length-1 B. scores.length < scores.length C. i < students.length D. i < students.length-1 正确答案：C