logicgate.java

一个JAVA源程序

import javax.swing.JOptionPane;

abstract class LogicGate{
    
    protected String strUserInput;
    protected String strWhatKindofOption;
    protected int intUserInput_1st;
    protected int intUserInput_2nd;
    protected int intResult;
    protected int intErrorInputRecord;
    protected boolean boolUserNeedThisInput;
    
    final protected int UserInput(){
        
        boolUserNeedThisInput = false;
        
        while(!(boolUserNeedThisInput)){
            
            intErrorInputRecord = 0; //set variable intErrorInputRecord = 0
            
            while (intErrorInputRecord < 3) {
                JOptionPane.showMessageDialog(null, "Please input the figure you would like to calculate"+ "\n\n" +
                "IMPORTANT NOTICE: "+ "\n\n"+
                "PLEASE ONLY input SINGLE figure: " + "\n" +
                "1 (=One) or 0(=Zero)"+"\n");
                System.out.println("Please input the value you would like to calculate"+ "\n\n" +
                "IMPORTANT NOTICE: "+ "\n\n"+
                "PLEASE ONLY input SINGLE figure: " + "\n" +
                "1 (=One) or 0(=Zero)"+"\n");
                
                InputData userInput = new InputData(); //get input and save input string to strUserInput
                strUserInput = userInput.GetKeyboardInput();
                
                if (!(strUserInput.equals("0")) & !(strUserInput.equals("1"))) {
                    JOptionPane.showMessageDialog(null, "Your input is: "+ strUserInput + "\n\n" +
                    "PLEASE ONLY input SINGLE figure: " + "\n" +
                    "1 (=One) or 0(=Zero)"+"\n");
                    System.out.println("Your input is: "+ strUserInput + "\n\n" +
                    "PLEASE ONLY input SINGLE figure: " + "\n" +
                    "1 (=One) or 0(=Zero)"+"\n");
                    
                    intErrorInputRecord++;
                } //end of if()
                
                if (strUserInput.equals("0") | strUserInput.equals("1")){
                    
                    intErrorInputRecord=5; //quit loop method: while(intErrorInputRecord < 3)
                    //by giving value 5(>3) to variable intErrorInputRecord = 5
                }
                
                if (intErrorInputRecord == 3) {
                    JOptionPane.showMessageDialog(null, 
                    "You input wrong figure for 3 times!" +"\n\n" +
                    "Thank you for use this program!"+ "\n\n" +
                    "Program provided by: Mr ZHU Xing Jin" +"\n" +
                    "Student of University of Center Lancashire" + "\n" +
                    "Program based on: JAVA Technology" + "\n\n" +
                    "JAVA is a registered Trade Mark of Sun Micorsystems" + "\n" +
                    "For more information please visit:" + "\n" +
                    "http://java.sun.com" +"\n\n" +
                    "Program TERMINATE" + "\n");
                    System.exit(0);
                }  //end of if()
                
            }  //end of while(intErrorInputRecord < 3)
            
            intErrorInputRecord = 0;
            
            while (intErrorInputRecord < 3){
                
                JOptionPane.showMessageDialog(null, "You have input the following figure: "+ "\n" +
                strUserInput + "\n\n" +
                "Is it what you want? Please Confirm by choosing the following options" + "\n" +
                "Please input Single Figure:"+ "\n\n" +
                "1 = YES, Its what i want" + "\n" +
                "5 = NO, Its NOT what i want, i wanna INPUT AGAIN" + "\n" +
                "0 = Exit program"+ "\n");
                System.out.println("You have input the following figure: "+ "\n" +
                strUserInput + "\n\n" +
                "Is it what you want? Please Confirm by choosing the following options" + "\n" +
                "Please input Single Figure:"+ "\n\n" +
                "1 = YES, Its what i want" + "\n" +
                "5 = NO, Its NOT what i want, i wanna INPUT AGAIN" + "\n" +
                "0 = Exit program"+ "\n");
                
                InputData userInput = new InputData(); //get user input and save input string to strstrWhatKindofOption
                strWhatKindofOption = userInput.GetKeyboardInput();
                
                if (!(strWhatKindofOption.equals("0")) & !(strWhatKindofOption.equals("1")) &
                !(strWhatKindofOption.equals("5"))) {
                    JOptionPane.showMessageDialog(null, "Your input is: "+ strWhatKindofOption + "\n\n" +
                    "Please ONLY input:"+"\n\n" +
                    "1 = YES, Its what i want" + "\n" +
                    "5 = NO, Its NOT, i wanna INPUT the figure i want AGAIN" + "\n\n" +
                    "0 = Exit program"+ "\n");
                    System.out.println("Your input is: "+ strWhatKindofOption + "\n\n" +
                    "Please ONLY input:"+"\n\n" +
                    "1 = YES, Its what i want" + "\n" +
                    "5 = NO, Its NOT, i wanna INPUT the figure i want AGAIN" + "\n\n" +
                    "0 = Exit program"+ "\n");
                    
                    intErrorInputRecord++;
                }  //end of if()
                
                if (strWhatKindofOption.equals("0")) {
                    JOptionPane.showMessageDialog(null, 
                    "Thank you for use this program!"+ "\n\n" +
                    "Program provided by: Mr ZHU Xing Jin" +"\n" +
                    "Student of University of Center Lancashire" + "\n" +
                    "Program based on: JAVA Technology" + "\n\n" +
                    "JAVA is a registered Trade Mark of Sun Micorsystems" + "\n" +
                    "For more information please visit:" + "\n" +
                    "http://java.sun.com" +"\n\n" +
                    "Program TERMINATE" + "\n");
                    System.out.println(
                    "Thank you for use this program!"+ "\n\n" +
                    "Program provided by: Mr ZHU Xing Jin" +"\n" +
                    "Student of University of Center Lancashire" + "\n" +
                    "Program based on: JAVA Technology" + "\n\n" +
                    "JAVA is a registered Trade Mark of Sun Micorsystems" + "\n" +
                    "For more information please visit:" + "\n" +
                    "http://java.sun.com" +"\n\n" +
                    "" + "\n");
                    
                    System.exit(0);
                }  //end of if()
                
                if(strWhatKindofOption.equals("1")) {
                    intErrorInputRecord=5; //quit loop method: while(intErrorInputRecord < 3)
                    //by giving value 5(>3) to variable intErrorInputRecord = 5
                    boolUserNeedThisInput = true;  //quit loop method: while(!(boolUserNeedThisInput))
                    //by giving "true" to boolUserNeedThisLogicGate
                }  //end of if()
                
                if(strWhatKindofOption.equals("5")) {
                    intErrorInputRecord=5; //quit loop method: while(intErrorInputRecord < 3)
                    //by giving value 5(>3) to variable intErrorInputRecord = 5
                    //but NOT quit loop method: while(!(boolUserNeedThisInput))
                    //because boolean variable boolUserNeedThisLogicGate is STILL false
                    //the loop method: while(!(boolUserNeedThisInput)) is STILL RUNING
                }  //end of if()
                
                if (intErrorInputRecord == 3) {
                    JOptionPane.showMessageDialog(null, 
                    "You input wrong figure for 3 times!" +"\n\n" +
                    "Thank you for use this program!"+ "\n\n" +
                    "Program provided by: Mr ZHU Xing Jin" +"\n" +
                    "Student of University of Center Lancashire" + "\n" +
                    "Program based on: JAVA Technology" + "\n\n" +
                    "JAVA is a registered Trade Mark of Sun Micorsystems" + "\n" +
                    "For more information please visit:" + "\n" +
                    "http://java.sun.com" +"\n\n" +
                    "Program TERMINATE" + "\n");
                    System.exit(0);
                }  //end of if()
                
            }  //end of while(intErrorInputRecord < 3)
            
        }  //end of while(!(boolUserNeedThisInput))
        return Integer.parseInt(strUserInput);
        
    }  //end of UserInput()
    
    final protected void SetintUserInput_1st(int temp){
        
        intUserInput_1st = temp;
    }
    
    final protected void SetintUserInput_2nd(int temp) {
        
        intUserInput_2nd = temp;
    }
    
    final protected int GetintResult(){
        
        return intResult;
    }
    
    protected abstract void Calculate();
    
    protected abstract void Display();
    
    protected abstract void Display(int temp);
    
}