如何停止從java中的另一種方法調用方法？

我有一個計算器代碼和問題是：如何停止從java中的另一種方法調用方法？

public void valueCheck(String value,JToggleButton button) { 
     if(values.size()>2) 
     { 
      processValue(value); 
      button.setSelected(false); 
      JOptionPane.showMessageDialog(this, "You cant click 3 buttons at the same time.."); 
     } 
    }

有一種方法valueCheck和：

public boolean evenOdd(JToggleButton buton) 
    { 
     if(values.size()==2) 
     { 
     System.out.println((String)values.get(0)); 
     System.out.println((String)values.get(1)); 

     String number1 = new String(values.get(0)); 
     String number2 = new String(values.get(1)); 

     if(evenNumbers.contains(number1)) 
     { 
      if(evenNumbers.contains(number2)) 
      { 
       processValue(number1); 
       processValue(number2); 
      } 
      else if(oddNumbers.contains(number2)) 
      { 
       buton.setSelected(false); 
       JOptionPane.showMessageDialog(this, "You cant click an even and an odd number at the same time.."); 

      } 
     } 
     else if(oddNumbers.contains(number1)) 
     { 
      if(oddNumbers.contains(number2)) 
      { 
       processValue(number1); 
       processValue(number2); 
      } 
      else if(evenNumbers.contains(number2)) 
      { 
       buton.setSelected(false); 
       JOptionPane.showMessageDialog(this, "You cant click an even and an odd number at the same time.."); 
      } 
     } 
     } 
     return false; 
    }

有一個方法EVENODD。

我的問題是：我不想valueCheck方法爲EVENODD method.When EVENODD方法運行運行valueCheck必須有停止calling.Is一個事件要做到這一點我想停止呼籲valueCheck時EVENODD運行

？

這是我的整個代碼。

package tr.com.bites; 
import com.sun.org.apache.xml.internal.utils.StopParseException; 
import java.util.List; 
import java.util.ArrayList; 
import javax.swing.JOptionPane; 
import javax.swing.JToggleButton; 
public class CalculatorView_1 extends javax.swing.JFrame { 
    JToggleButton[] buttons = new JToggleButton[4]; 
    public CalculatorView_1() { 
     initComponents(); 
     buttons[0]=jToggleButton12; 
     buttons[1]=jToggleButton11; 
     buttons[2]=jToggleButton10; 
     buttons[3]=jToggleButton13; 
    } 
    @SuppressWarnings("unchecked") 
    // <editor-fold defaultstate="collapsed" desc="Generated Code">       
    private void initComponents() { 

     jToggleButton1 = new javax.swing.JToggleButton(); 
     jToggleButton2 = new javax.swing.JToggleButton(); 
     jToggleButton3 = new javax.swing.JToggleButton(); 
     jToggleButton4 = new javax.swing.JToggleButton(); 
     jToggleButton5 = new javax.swing.JToggleButton(); 
     jToggleButton6 = new javax.swing.JToggleButton(); 
     jToggleButton7 = new javax.swing.JToggleButton(); 
     jToggleButton8 = new javax.swing.JToggleButton(); 
     jToggleButton9 = new javax.swing.JToggleButton(); 
     jToggleButton10 = new javax.swing.JToggleButton(); 
     jToggleButton11 = new javax.swing.JToggleButton(); 
     jToggleButton12 = new javax.swing.JToggleButton(); 
     jToggleButton13 = new javax.swing.JToggleButton(); 
     jToggleButton14 = new javax.swing.JToggleButton(); 
     jTextField1 = new javax.swing.JTextField(); 

     setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); 

     jToggleButton1.setText("1"); 
     jToggleButton1.addActionListener(new java.awt.event.ActionListener() { 
      public void actionPerformed(java.awt.event.ActionEvent evt) { 
       jToggleButton1ActionPerformed(evt); 
      } 
     }); 

     jToggleButton2.setText("2"); 
     jToggleButton2.addActionListener(new java.awt.event.ActionListener() { 
      public void actionPerformed(java.awt.event.ActionEvent evt) { 
       jToggleButton2ActionPerformed(evt); 
      } 
     }); 

     jToggleButton3.setText("3"); 
     jToggleButton3.addActionListener(new java.awt.event.ActionListener() { 
      public void actionPerformed(java.awt.event.ActionEvent evt) { 
       jToggleButton3ActionPerformed(evt); 
      } 
     }); 

     jToggleButton4.setText("5"); 
     jToggleButton4.addActionListener(new java.awt.event.ActionListener() { 
      public void actionPerformed(java.awt.event.ActionEvent evt) { 
       jToggleButton4ActionPerformed(evt); 
      } 
     }); 

     jToggleButton5.setText("4"); 
     jToggleButton5.addActionListener(new java.awt.event.ActionListener() { 
      public void actionPerformed(java.awt.event.ActionEvent evt) { 
       jToggleButton5ActionPerformed(evt); 
      } 
     }); 

     jToggleButton6.setText("6"); 
     jToggleButton6.addActionListener(new java.awt.event.ActionListener() { 
      public void actionPerformed(java.awt.event.ActionEvent evt) { 
       jToggleButton6ActionPerformed(evt); 
      } 
     }); 

     jToggleButton7.setText("8"); 
     jToggleButton7.addActionListener(new java.awt.event.ActionListener() { 
      public void actionPerformed(java.awt.event.ActionEvent evt) { 
       jToggleButton7ActionPerformed(evt); 
      } 
     }); 

     jToggleButton8.setText("7"); 
     jToggleButton8.addActionListener(new java.awt.event.ActionListener() { 
      public void actionPerformed(java.awt.event.ActionEvent evt) { 
       jToggleButton8ActionPerformed(evt); 
      } 
     }); 

     jToggleButton9.setText("9"); 
     jToggleButton9.addActionListener(new java.awt.event.ActionListener() { 
      public void actionPerformed(java.awt.event.ActionEvent evt) { 
       jToggleButton9ActionPerformed(evt); 
      } 
     }); 

     jToggleButton10.setText("*"); 
     jToggleButton10.addActionListener(new java.awt.event.ActionListener() { 
      public void actionPerformed(java.awt.event.ActionEvent evt) { 
       jToggleButton10ActionPerformed(evt); 
      } 
     }); 

     jToggleButton11.setText("-"); 
     jToggleButton11.addActionListener(new java.awt.event.ActionListener() { 
      public void actionPerformed(java.awt.event.ActionEvent evt) { 
       jToggleButton11ActionPerformed(evt); 
      } 
     }); 

     jToggleButton12.setText("+"); 
     jToggleButton12.addActionListener(new java.awt.event.ActionListener() { 
      public void actionPerformed(java.awt.event.ActionEvent evt) { 
       jToggleButton12ActionPerformed(evt); 
      } 
     }); 

     jToggleButton13.setText("/"); 
     jToggleButton13.addActionListener(new java.awt.event.ActionListener() { 
      public void actionPerformed(java.awt.event.ActionEvent evt) { 
       jToggleButton13ActionPerformed(evt); 
      } 
     }); 

     jToggleButton14.setText("="); 
     jToggleButton14.addActionListener(new java.awt.event.ActionListener() { 
      public void actionPerformed(java.awt.event.ActionEvent evt) { 
       jToggleButton14ActionPerformed(evt); 
      } 
     }); 

     javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane()); 
     getContentPane().setLayout(layout); 
     layout.setHorizontalGroup(
      layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) 
      .addGroup(layout.createSequentialGroup() 
       .addGap(24, 24, 24) 
       .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) 
        .addGroup(layout.createSequentialGroup() 
         .addComponent(jToggleButton8) 
         .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) 
         .addComponent(jToggleButton7) 
         .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) 
         .addComponent(jToggleButton9)) 
        .addGroup(layout.createSequentialGroup() 
         .addComponent(jToggleButton5) 
         .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) 
         .addComponent(jToggleButton4) 
         .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) 
         .addComponent(jToggleButton6)) 
        .addGroup(layout.createSequentialGroup() 
         .addComponent(jToggleButton1) 
         .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) 
         .addComponent(jToggleButton2) 
         .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) 
         .addComponent(jToggleButton3))) 
       .addGap(34, 34, 34) 
       .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false) 
        .addComponent(jToggleButton12, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) 
        .addComponent(jToggleButton11, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) 
        .addComponent(jToggleButton10, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) 
        .addComponent(jToggleButton13, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) 
        .addComponent(jToggleButton14, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)) 
       .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED) 
       .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 84, javax.swing.GroupLayout.PREFERRED_SIZE) 
       .addContainerGap(78, Short.MAX_VALUE)) 
     ); 
     layout.setVerticalGroup(
      layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) 
      .addGroup(layout.createSequentialGroup() 
       .addGap(36, 36, 36) 
       .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) 
        .addGroup(layout.createSequentialGroup() 
         .addComponent(jToggleButton12) 
         .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) 
         .addComponent(jToggleButton11) 
         .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) 
         .addComponent(jToggleButton10)) 
        .addGroup(layout.createSequentialGroup() 
         .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) 
          .addComponent(jToggleButton1) 
          .addComponent(jToggleButton2) 
          .addComponent(jToggleButton3)) 
         .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) 
         .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) 
          .addComponent(jToggleButton5) 
          .addComponent(jToggleButton4) 
          .addComponent(jToggleButton6)) 
         .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) 
         .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) 
          .addComponent(jToggleButton8) 
          .addComponent(jToggleButton7) 
          .addComponent(jToggleButton9)))) 
       .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) 
       .addComponent(jToggleButton13) 
       .addGap(41, 41, 41) 
       .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) 
        .addComponent(jToggleButton14) 
        .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)) 
       .addContainerGap(90, Short.MAX_VALUE)) 
     ); 

     pack(); 
    }// </editor-fold>       

    private void jToggleButton1ActionPerformed(java.awt.event.ActionEvent evt) {            
     processValue("1"); 
     valueCheck("1",jToggleButton1); 
     evenOdd(jToggleButton1); 
    }            

    private void jToggleButton2ActionPerformed(java.awt.event.ActionEvent evt) {            
     processValue("2"); 
     valueCheck("2",jToggleButton2); 
     evenOdd(jToggleButton2); 
    }            

    private void jToggleButton3ActionPerformed(java.awt.event.ActionEvent evt) {            
     processValue("3"); 
     valueCheck("3",jToggleButton3); 
     evenOdd(jToggleButton3); 
    }            

    private void jToggleButton5ActionPerformed(java.awt.event.ActionEvent evt) {            
     processValue("4"); 
     valueCheck("4",jToggleButton5); 
     evenOdd(jToggleButton5); 
    }            

    private void jToggleButton4ActionPerformed(java.awt.event.ActionEvent evt) {            
     processValue("5"); 
     valueCheck("5",jToggleButton4); 
     evenOdd(jToggleButton4); 
    }            

    private void jToggleButton6ActionPerformed(java.awt.event.ActionEvent evt) {            
     processValue("6"); 
     valueCheck("6",jToggleButton6); 
     evenOdd(jToggleButton6); 
    }            

    private void jToggleButton8ActionPerformed(java.awt.event.ActionEvent evt) {            
     processValue("7"); 
     valueCheck("7",jToggleButton8); 
     evenOdd(jToggleButton8); 
    }            

    private void jToggleButton7ActionPerformed(java.awt.event.ActionEvent evt) {            
     processValue("8"); 
     valueCheck("8",jToggleButton7); 
     evenOdd(jToggleButton7); 
    }            

    private void jToggleButton9ActionPerformed(java.awt.event.ActionEvent evt) {            
     processValue("9"); 
     valueCheck("9",jToggleButton9); 
     evenOdd(jToggleButton9); 
    }            

    private void jToggleButton12ActionPerformed(java.awt.event.ActionEvent evt) {             
     processValue("+"); 
     for(JToggleButton b: buttons) 
      b.setSelected(false); 
     if(values.contains("+")) 
      jToggleButton12.setSelected(true); 
    }            

    private void jToggleButton11ActionPerformed(java.awt.event.ActionEvent evt) {             
     processValue("-"); 
     for(JToggleButton b: buttons) 
      b.setSelected(false); 
     if(values.contains("-")) 
      jToggleButton11.setSelected(true); 
    }            

    private void jToggleButton10ActionPerformed(java.awt.event.ActionEvent evt) {             
     processValue("*"); 
     for(JToggleButton b: buttons) 
      b.setSelected(false); 
     if(values.contains("*")) 
      jToggleButton10.setSelected(true); 
    }            

    private void jToggleButton13ActionPerformed(java.awt.event.ActionEvent evt) {             
     processValue("/"); 
     for(JToggleButton b: buttons) 
      b.setSelected(false); 
     if(values.contains("/")) 
      jToggleButton13.setSelected(true); 
    }            

    private void jToggleButton14ActionPerformed(java.awt.event.ActionEvent evt) {             
     long total=-1; 
     int firstNumber=-1; 
     int secondNumber=-1; 
     String process=null; 
     for (String secilenler : values) { 
      if(secilenler.equals("+")) 
       process="+"; 
      else if(secilenler.equals("-")) 
       process="-"; 
      else if(secilenler.equals("*")) 
       process="*"; 
      else if(secilenler.equals("/")) 
       process="/";  
      else 
      { 
       if(firstNumber==-1) 
        firstNumber= Integer.parseInt(secilenler); 
       else 
        secondNumber= Integer.parseInt(secilenler); 
      } 
     } 
      if(process.equals("+")) 
       total=firstNumber+secondNumber; 
      else if(process.equals("-")) 
       total=firstNumber-secondNumber; 
      else if(process.equals("*")) 
       total=firstNumber*secondNumber; 
      else 
       total=firstNumber/secondNumber; 
      jTextField1.setText(""+total); 
    }            

    /** 
    * @param args the command line arguments 
    */ 
    public static void main(String args[]){ 
     java.awt.EventQueue.invokeLater(new Runnable() { 
      @Override 
      public void run() { 
       new CalculatorView_1().setVisible(true); 
      } 
     }); 
    } 
    // Variables declaration - do not modify      
    private javax.swing.JTextField jTextField1; 
    private javax.swing.JToggleButton jToggleButton1; 
    private javax.swing.JToggleButton jToggleButton10; 
    private javax.swing.JToggleButton jToggleButton11; 
    private javax.swing.JToggleButton jToggleButton12; 
    private javax.swing.JToggleButton jToggleButton13; 
    private javax.swing.JToggleButton jToggleButton14; 
    private javax.swing.JToggleButton jToggleButton2; 
    private javax.swing.JToggleButton jToggleButton3; 
    private javax.swing.JToggleButton jToggleButton4; 
    private javax.swing.JToggleButton jToggleButton5; 
    private javax.swing.JToggleButton jToggleButton6; 
    private javax.swing.JToggleButton jToggleButton7; 
    private javax.swing.JToggleButton jToggleButton8; 
    private javax.swing.JToggleButton jToggleButton9; 
    // End of variables declaration     
    private List<String> values = new ArrayList<String>(); 
    private List<String> evenNumbers = new ArrayList<String>(); 
    { 
     evenNumbers.add("2"); 
     evenNumbers.add("4"); 
     evenNumbers.add("6"); 
     evenNumbers.add("8"); 
    } 
    private List<String> oddNumbers = new ArrayList<String>(); 
    { 
     oddNumbers.add("1"); 
     oddNumbers.add("3"); 
     oddNumbers.add("5"); 
     oddNumbers.add("7"); 
     oddNumbers.add("9"); 
    } 
    public void processValue(String strValue) 
    { 
     if(values.contains(strValue)) 
      values.remove(strValue); 
     else 
      values.add(strValue); 
    } 

    public void valueCheck(String value,JToggleButton button) { 
     if(values.size()>2) 
     { 
      processValue(value); 
      button.setSelected(false); 
      JOptionPane.showMessageDialog(this, "You cant click 3 buttons at the same time.."); 
     } 
    } 
    public boolean evenOdd(JToggleButton buton) 
    { 
     if(values.size()==2) 
     { 
     System.out.println((String)values.get(0)); 
     System.out.println((String)values.get(1)); 

     String number1 = new String(values.get(0)); 
     String number2 = new String(values.get(1)); 

     if(evenNumbers.contains(number1)) 
     { 
      if(evenNumbers.contains(number2)) 
      { 
       processValue(number1); 
       processValue(number2); 
      } 
      else if(oddNumbers.contains(number2)) 
      { 
       buton.setSelected(false); 
       JOptionPane.showMessageDialog(this, "You cant click an even and an odd number at the same time.."); 

      } 
     } 
     else if(oddNumbers.contains(number1)) 
     { 
      if(oddNumbers.contains(number2)) 
      { 
       processValue(number1); 
       processValue(number2); 
      } 
      else if(evenNumbers.contains(number2)) 
      { 
       buton.setSelected(false); 
       JOptionPane.showMessageDialog(this, "You cant click an even and an odd number at the same time.."); 
      } 
     } 
     } 
     return false; 
    } 
}

來源

2013-07-25 cansukartal

你似乎沒有多線程，所以當'evenOdd'運行時，沒有其他任何東西。所以你是什麼意思？ –

我的意思是; valueCheck方法的工作並不是同時點擊3個按鈕.evenOdd方法的工作是不同時點擊一個偶數和一個奇數。例如，我點擊了2，然後是3。「你不能單擊一個單一的奇偶」然後我想單擊一個偶數如4,6,8。現在會有一個警告「你不能單擊3個按鈕」。然後我不能點擊一個均勻因此這些方法不能同時正確運行。 – cansukartal

你能分享一下你需要通過這個實現目標嗎？ –

您的問題與多線程無關。 Multithreading涉及多個threads，因此該詞本身。在你的情況下，你想要做的事情可以用簡單的if-else語句和來自所涉及的方法的適當的返回值來實現。

我看到你的方法evenOdd()已經返回boolean。你可以從中受益。在evenOdd()中顯示錯誤消息後，使其返回false。然後，當按下切換按鈕時，測試evenOdd()是否返回true，然後調用valueCheck()，否則，如果返回false（顯示錯誤消息），則不要調用它。

if(evenOdd(jToggleButton1)) 
    valueCheck("1", jToggleButton1);

此外，您當前的方法名稱很混亂。嘗試玩你說出你方法的方式。應該以這樣的方式命名方法，當你看到它的時候，你已經知道它做了什麼。

來源

2013-07-25 09:00:24 Bnrdo

我使evenOdd（）方法返回false，但我無法理解答案的其他部分。 if-else語句？它是如何工作的？ – cansukartal

讓我澄清一下，當'evenOdd（）'顯示錯誤信息時，你想要調用'valueCheck（）'。沒有？ – Bnrdo

你說得對，這正是我想要的 – cansukartal

如何停止從java中的另一種方法調用方法？

回答

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