Java 8 以上(包含java8) Lambda 方式,这种方式比较简洁,代码如下:
import java.util.ArrayListimport java.util.List
import java.util.Scanner
public class App20 {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in)
List<Float> scores = new ArrayList<>()
System.out.println("请输入10个人的成绩:")
for (int i = 0 i < 10 i++) {
scores.add(scanner.nextFloat())
}
float max = scores.stream().max((x, y) -> Float.compare(x, y)).get()
System.out.println("最高分:" + max)
float min = scores.stream().min((x, y) -> Float.compare(x, y)).get()
System.out.println("最低分:" + min)
float average = scores.stream().reduce(0.0f, Float::sum) / scores.size()
System.out.println("平均分:" + average)
scores.sort((x, y) -> Float.compare(x, y))
System.out.println("从小到大分数排序:")
scores.forEach(s -> System.out.print(s + " "))
long n = scores.stream().filter(r -> r >岩粗 average).count()
System.out.println("\n高于拦数平均分的有" + n + "个")
}
}
传统方式,如下:
import java.util.Arrayspublic class App21 {
public static void main(String[] args) {
float[] scores 简枣首= new float[] { 10f, 9f, 8f, 7f, 6f, 5f, 4f, 3f, 2f, 1f }
float max = Float.MIN_VALUE
for(float score : scores) {
if (score > max) {
max = score
}
}
System.out.println("最高分:" + max)
float min = Float.MAX_VALUE
for(float score : scores) {
if (score < min) {
min = score
}
}
System.out.println("最低分:" + min)
float sum = 0
for(float score : scores) {
sum += score
}
float average = sum / scores.length
System.out.println("平均分:" + average)
// 从小到大排序
Arrays.sort(scores)
System.out.println("从小到大分数排序:")
for(float score : scores) {
System.out.print(score + " ")
}
int n = 0
for(float score : scores) {
if (score > average)
n++
}
System.out.println("\n高于平均分的有" + n + "个")
}
}
import java.util.Scannerpublic class test {
static int s
public static void main(String[] argv) {
int [] num=new int[20]
Scanner scanner=new Scanner(System.in)
Integer a
int i
for(i=1i<=20i++){
System.out.println("请输入第"+i+"一个分数(结束请输入520嘿嘿):")
a=scanner.nextInt()
num[i-1]=a
if(a==520){
break
}
}
for(int m=0m<i-1m++)
{
s=s+num[m]
}
System.out.println("总共录入辩衡了"+(i-1)+"个分芹滚数")
System.out.println("总成绩是"+s+"分")
System.out.println("平均分是"+s/(i-1)+"分")
for(Integer m=0m<num.length-1m++)
{ if(num[m]>0&&num[m]!=520){
if(num[m]>=90)
System.out.println(num[m]+"优秀")
else if(num[m]>=80)
System.out.println(num[m]+"良好")
else if(num[m]>=70)
System.out.println(num[m]+"中等")
else if(num[m]>=60)
System.out.println(num[m]+"及格"携首做)
else
System.out.println(num[m]+"不及格")
}else break
}
}
}
我的代码很简洁,采纳我呗。。。
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