我在Java中有一個問題,我簡單的二進制代碼轉換器(小程序):異常用一個簡單的二進制代碼轉換器
:import java.awt.*; import java.awt.event.*; import java.applet.Applet; public class dual_convert extends Applet implements ActionListener{ TextField dual; TextField decimal; Button dual_b; Button decimal_b; Label dual_l; Label decimal_l; int decimal_i; String dual_s []; int dual_i; int decimal_e; public void init() { setLayout(null); dual = new TextField(); dual.setBounds(90,10,100,25); add(dual); decimal = new TextField(); decimal.setBounds(90,40,100,25); add(decimal); decimal_l = new Label("Decimal:"); decimal_l.setBounds(10,40,80,25); add(decimal_l); dual_l = new Label("Binary:"); dual_l.setBounds(10,10,80,25); add(dual_l); dual_b = new Button ("Convert"); dual_b.setBounds(200,10,80,25); add(dual_b); dual_b.addActionListener(this); decimal_b = new Button ("Convert"); decimal_b.setBounds(200,40,80,25); add(decimal_b); decimal_b.addActionListener(this); } public void actionPerformed (ActionEvent e) { if (e.getSource()==decimal_b) { decimal_i = Integer.parseInt(decimal.getText()); int ih = 0; dual.setText(""); while (decimal_i>0) { dual.setText((decimal_i % 2)+dual.getText()); decimal_i = decimal_i/2; ih++; } } if (e.getSource()==dual_b) { dual_s = dual.getText().split(""); dual_i = dual_s.length; decimal.setText(""); for (int i=0;dual_i>0;dual_i--) { decimal_e = decimal_e + (Integer.parseInt(dual_s[dual_i]) * 2^i); i++; } decimal.setText(decimal_e+""); } } }
它按二進制轉換爲十進制拋出該異常
在異常線程 「AWT-EventQueue的-1」 java.lang.ArrayIndexOutOfBoundsException:8在 dual.actionPerformed(dual.java:65)在 java.awt.Button.processActionEvent(Button.java:409)在 java.awt.Button.processEvent(但(Event.ueva.Tool.java:377)at java.awt.Component.dispatchEventImpl(Component.java:4861)at java.awt.Component.dispatchEvent(Component.java:4687)at java.awt.EventQueue.dispatchEventImpl(EventQueue。 (EventQueue.java:103)at java.awt.EventQueue $ 3.run的.java:686)在 java.security.AccessController.doPrivileged(本機方法)在 java.security.ProtectionDomain $ 1.doIntersectionPrivilege(ProtectionDomain.java:76) 在 java.security.ProtectionDomain $ 1.doIntersectionPrivilege(ProtectionDomain.java :87) at java.awt.EventQueue $ 4.run(EventQueue.java:702)at java.awt.EventQueue $ 4.run(EventQueue.java:700)at java.security.AccessController.doPrivileged(Native Method)at java.security.ProtectionDomain $ 1.doIntersectionPrivilege(ProtectionDomain.java:76) at java。 awt.EventQueue.dispatchEvent(EventQueue.java:699)在 java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242) 在 java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161) 在 的java。 awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146) at java。 awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138) 在java.awt.EventDispatchThread.run(EventDispatchThread.java:91)
對於二元 - >十進制轉換我用這個系統(IS甚至有其他?):
100101 = [(1)×25] + [(0)×24] + [(0)×23] + [(1)×22] + [(0)×21] + [(1)×20]
100101 = [1×32] + [0×16] + [0×8] + [1×4] + [0×2] + [1×1]
100101 = 3710
https://en.wikipedia.org/wiki/Binary_number
編輯:後塔拉斯張貼有一個新的例外:在螺紋
異常 「AWT-EventQueue的-1」 java.lang.NumberFormatException:對於輸入字符串:「 「在 java.lang.NumberFormatException.forInputString(NumberFormatException.java:65) at java.lang.Integer.parseInt(Integer.java:504)at java.lang.Integer.parseInt(Integer.java:527)at dual_convert.actionPerformed(dual_convert。java:64)at java.awt.Button.processActionEvent(Button.java:409)at java.awt.Button.processEvent(Button.java:377)at java.awt.Component.dispatchEventImpl(Component.java: 4861)at java.awt.Component.dispatchEvent(Component.java:4687)at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:729)at java.awt.EventQueue.access $ 200(EventQueue.java:103 )維持在 java.awt.EventQueue中的$ 3.run(EventQueue.java:688)在 java.awt.EventQueue中的$ 3.run(EventQueue.java:686)在 java.security.AccessController.doPrivileged(本機方法) java.security.ProtectionDomain $ 1.doIntersectionPrivilege(ProtectionDomain.java:76) at java.security .ProtectionDomain $ 1.doIntersectionPrivilege(ProtectionDomain.java:87) at java.awt.EventQueue $ 4.run(EventQueue.java:702)at java.awt.EventQueue $ 4.run(EventQueue.java:700)at java。 java.security.ProtectionDomain $ 1.doIntersectionPrivilege(ProtectionDomain.java:76) at java.awt.EventQueue.dispatchEvent(EventQueue.java:699)at java.awt.EventDispatchThread。 pumpOneEventForFilters(EventDispatchThread.java:242) 在 java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161) 在 java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150) 在 個java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146) 在 java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138) 在java.awt.EventDispatchThread.run(EventDispatchThread.java:91)
我們正在前進......新的例外: [http://pastebin.com/bmqf8SrE](http://pastebin.com/bmqf8SrE) – user2651027
這個問題呢?我是否修復了您的異常? – Tala
舊的,是的,但有一個新的來了。 – user2651027