如何在eclipse中接受用戶輸入？

Question

你好如何使用eclipse進行用戶輸入。就像在命令提示符中一樣：

C：/ java javaApp（參數在這裏）。如何使eclipse從用戶那裏獲取輸入。

Answer 1

運行 - >運行配置 - >參數（這是右邊的第二個選項卡） - >程序參數

Answer 2

在程序中添加此行接受來自控制檯用戶的輸入：

BufferedReader in = new BufferedReader(new InputStreamReader(System.in)); 

然後添加in.readLine（）旁邊的任何變量您想接受運行時輸入。比方說，你要計數變量初始化爲值1，那麼，它應該寫成

int count = in.readLine(); 值1，應在控制檯運行程序

Answer 3

這裏後輸入是一個辦法在Eclips中輸入用戶輸入。

import java.util.Scanner; // enter the before the start of any class 
// declare the class here 
// this is an example of how to use the Scanner in a method 
Public static void Username();{ 
Scanner Input = new scanner (System.in); 
String username// declaring the username variable 
Scanner un = new Scanner(System.in); // un is just a random variable you can choose any other variable name if you want 
System.out.println("Enter Your Username"); 
username = un.next(); 
System.out.println("The username you entered is : " + username);} 

但是，如果你想在這裏取一個整數或雙精度作爲輸入，你怎麼做。 我只是想舉一個int輸入的例子，你只需用double替換int即可。

import java.util.Scanner; 
// Declare the class here 
// this is an example of how to use the Scanner in a method for an integer input by user 
Public static void booksRead();{ 
Scanner Input = new scanner (System.in); 
int books // declaring the books variable 
Scanner br = new Scanner(System.in); // br is just a random variable you can choose any other variable name if you want 
System.out.println("Enter how many books have you read: "); 
books = br.next(); 
System.out.println("The number of books you have read is : " + books);} 

Answer 4

這將打印由用戶輸入的號碼：

public static void main(String[] args) { 
    // TODO Auto-generated method stub 
    Scanner reader = new Scanner(System.in); // Reading from System.in 
    System.out.println("Enter a number: "); 
    int n = reader.nextInt(); // Scans the next token of the input as an int. 
    //once finished 
    System.out.println(n); 
    reader.close(); 
}