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使用Ecplipse导出时,java无法使我的程序可执行

亲爱的java爱好者们:

我想把我的java程序变成一个可执行文件。在eclipse的帮助下创建jar文件。我出口到一家公司。jar文件,但当我双击它时,它似乎不工作?我想我错过了一些东西,但经过一段时间的努力,我找不到它

有什么建议吗

import java.util.Scanner;

public class GravityMoon {

public static void main(String[] args) {
            System.out.println("Please enter your earthweight in kilograms below:");

    Scanner earthweight = new Scanner(System.in);
    // Repeat until next item is a double
    while (!earthweight.hasNextDouble()) 
    {        
        // Read and discard offending non-double input
        earthweight.next(); 
        // Re-prompt
        System.out.print("Please enter your earthweight "
                + "in numerical kilograms: "); 
    }

    double moonweight;

    // Converts earthweight in moonweight 17%
    moonweight = earthweight.nextDouble() * 0.17; 

    // convert to whole numbers


    //closes keyboard input
    earthweight.close(); 

    //prints out your moonweight in a decimal number
    System.out.println("Your moonweight is " + Math.round(moonweight * 100d) /100d 
            + " kilograms.");

        }}

共 (1) 个答案