java中大數據計算（Java練習從鍵盤讀數）

2023-07-31 11:07:48 1

java中大數據計算?import java.util.Scanner;class TestExer{ public static void main(String[] args){ Scanner s = new Scanner(System.in); int a = 0; //正數的個數 int b = 0; //負數的個數 for(int i = 0; i 0) a ; else if(num < 0) b ; } System.out.println("正數個數：" a); System.out.println("負數個數：" b); }}，下面我們就來說一說關於java中大數據計算?我們一起去了解並探討一下這個問題吧!

java中大數據計算

import java.util.Scanner;class TestExer{ public static void main(String[] args){ Scanner s = new Scanner(System.in); int a = 0; //正數的個數 int b = 0; //負數的個數 for(int i = 0; i 0) a ; else if(num 0) a ; else if(num =80 等級為』B』成績>=60 等級為』C』其餘 等級為』D』

import java.util.Scanner;public class Scores { public static void main(String[] args) { Scanner s = new Scanner(System.in); System.out.print("請輸入學生個數n:"); int n = s.nextInt; int scores[] = new int[n];//創建數組存放成績 for(int i = 0;i<scores.length; i ) { int j = i 1; System.out.print("請輸入第" j "個學生成績："); scores[i] = s.nextInt; } int maxScore = 0;//最高分 int a = 0;//成績等級 int b = 0; int c = 0; int d = 0; for(int i = 0; i < scores.length; i ) { if(maxScore =80) { b ; }else if(scores[i]>=60) { c ; }else { d ; } } System.out.println("最高分為：" maxScore); System.out.println("A等級人數為：" a); System.out.println("B等級人數為：" b); System.out.println("C等級人數為：" c); System.out.println("D等級人數為：" d); }}

或

import java.util.Scanner;public class Scores1 { public static void main(String[] args) { Scanner s = new Scanner(System.in); System.out.print("請輸入學生個數n:"); int n = s.nextInt; int scores[] = new int[n];//創建數組存放成績 for(int i = 0;i<scores.length; i ) { int j = i 1; System.out.print("請輸入第" j "個學生成績："); scores[i] = s.nextInt; } int maxScore = 0;//最高分 //學生成績等級 char grade[] = new char[] {'A','B','C','D'}; int count[] = new int[4];//統計成績等級人數 for(int i = 0; i < scores.length; i ) { if(maxScore =80) { count[1] ; }else if(scores[i]>=60) { count[2] ; }else { count[3] ; } } System.out.println("最高分為：" maxScore); for(int i = 0; i<grade.length; i ) { System.out.println(grade[i] "等級人數為：" count[i]); } }}