JAVA 제네릭 컬렉션 실습

Programming/JAVA,JSP 2014. 1. 9. 16:32 Posted by TanSanC
336x280(권장), 300x250(권장), 250x250, 200x200 크기의 광고 코드만 넣을 수 있습니다.

1. 아이디 비밀번호 시스템 (Map)

ex)
아이디 : tansanc
비밀번호 : green
로그인 성공!!

아이디 : tansanc
비밀번호 : green1
비밀번호가 틀렸습니다.

아이디 : tansanc2
비밀번호 : green
존재하지 않는 아이디 입니다.

 

2. (Set) 쿵쿵따
제시어 : 기러기 //랜덤하게

기러기
기차표
표인봉
봉우리
이무기
기러기  // 땡!! 중복

 

3. 배열값을 10개 입력 받고
정렬하여 출력

 

4. 10000개 짜리 ArrayList,
 LinkedList 를 만들어서
 remove 속도 비교
 System.currentTimeMillis();

 

 

저작자표시 변경금지 (새창열림)

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JAVA GUI 계산기 소스코드

Programming/JAVA,JSP 2013. 12. 22. 17:55 Posted by TanSanC
336x280(권장), 300x250(권장), 250x250, 200x200 크기의 광고 코드만 넣을 수 있습니다.

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;


import javax.swing.JButton;


/*

 * To change this template, choose Tools | Templates

 * and open the template in the editor.

 */


/**

 * 

 * @author Administrator

 */

public class NewJFrame extends javax.swing.JFrame implements ActionListener {


/**

* Creates new form NewJFrame

*/

public NewJFrame() {

initComponents();

toDo();

}


private void toDo() {

// TODO Auto-generated method stub

jButton2.addActionListener(this);

jButton3.addActionListener(this);

jButton4.addActionListener(this);

jButton5.addActionListener(this);

jButton6.addActionListener(this);

jButton7.addActionListener(this);

jButton8.addActionListener(this);

jButton9.addActionListener(this);

jButton10.addActionListener(this);

jButton13.addActionListener(this);

jButton14.addActionListener(this);

jButton15.addActionListener(this);

jButton16.addActionListener(this);

jButton17.addActionListener(this);

jButton18.addActionListener(this);

}


@SuppressWarnings("unchecked")

// <editor-fold defaultstate="collapsed" desc="Generated Code">

private void initComponents() {


jButton2 = new javax.swing.JButton();

jTextField3 = new javax.swing.JTextField();

jButton3 = new javax.swing.JButton();

jButton4 = new javax.swing.JButton();

jButton7 = new javax.swing.JButton();

jButton5 = new javax.swing.JButton();

jButton6 = new javax.swing.JButton();

jButton8 = new javax.swing.JButton();

jButton9 = new javax.swing.JButton();

jButton10 = new javax.swing.JButton();

jButton13 = new javax.swing.JButton();

jButton14 = new javax.swing.JButton();

jButton15 = new javax.swing.JButton();

jButton16 = new javax.swing.JButton();

jButton17 = new javax.swing.JButton();

jButton18 = new javax.swing.JButton();

jToggleButton1 = new javax.swing.JToggleButton();


setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);


jTextField3.setText("");


jButton2.setText("1");


jButton3.setText("2");


jButton4.setText("3");


jButton5.setText("4");


jButton6.setText("5");


jButton7.setText("6");


jButton8.setText("7");


jButton9.setText("8");


jButton10.setText("9");


jButton13.setText("0");


jButton14.setText("+");


jButton15.setText("/");


jButton16.setText("x");


jButton17.setText("-");


jButton18.setText("=");


jToggleButton1.setText("jToggleButton1");


javax.swing.GroupLayout layout = new javax.swing.GroupLayout(

getContentPane());

getContentPane().setLayout(layout);

layout.setHorizontalGroup(layout

.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

.addComponent(jTextField3)

.addGroup(

layout.createSequentialGroup()

.addGroup(

layout.createParallelGroup(

javax.swing.GroupLayout.Alignment.LEADING)

.addGroup(

layout.createParallelGroup(

javax.swing.GroupLayout.Alignment.TRAILING)

.addGroup(

layout.createSequentialGroup()

.addComponent(

jButton5)

.addPreferredGap(

javax.swing.LayoutStyle.ComponentPlacement.RELATED)

.addComponent(

jButton6)

.addPreferredGap(

javax.swing.LayoutStyle.ComponentPlacement.RELATED)

.addComponent(

jButton7))

.addGroup(

layout.createSequentialGroup()

.addComponent(

jButton2)

.addPreferredGap(

javax.swing.LayoutStyle.ComponentPlacement.RELATED)

.addComponent(

jButton3)

.addPreferredGap(

javax.swing.LayoutStyle.ComponentPlacement.RELATED)

.addComponent(

jButton4)))

.addGroup(

layout.createSequentialGroup()

.addComponent(

jButton9)

.addPreferredGap(

javax.swing.LayoutStyle.ComponentPlacement.RELATED)

.addGroup(

layout.createParallelGroup(

javax.swing.GroupLayout.Alignment.LEADING)

.addComponent(

jButton13)

.addGroup(

layout.createSequentialGroup()

.addComponent(

jButton10)

.addPreferredGap(

javax.swing.LayoutStyle.ComponentPlacement.RELATED)

.addComponent(

jButton8)))))

.addPreferredGap(

javax.swing.LayoutStyle.ComponentPlacement.RELATED)

.addGroup(

layout.createParallelGroup(

javax.swing.GroupLayout.Alignment.LEADING)

.addGroup(

layout.createSequentialGroup()

.addGroup(

layout.createParallelGroup(

javax.swing.GroupLayout.Alignment.LEADING)

.addComponent(

jButton16)

.addComponent(

jButton15))

.addPreferredGap(

javax.swing.LayoutStyle.ComponentPlacement.RELATED)

.addComponent(

jButton18))

.addGroup(

layout.createParallelGroup(

javax.swing.GroupLayout.Alignment.TRAILING)

.addComponent(

jButton17)

.addComponent(

jButton14)))

.addPreferredGap(

javax.swing.LayoutStyle.ComponentPlacement.RELATED,

javax.swing.GroupLayout.DEFAULT_SIZE,

Short.MAX_VALUE)

.addComponent(jToggleButton1,

javax.swing.GroupLayout.PREFERRED_SIZE,

70,

javax.swing.GroupLayout.PREFERRED_SIZE)

.addContainerGap()));

layout.setVerticalGroup(layout

.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

.addGroup(

layout.createSequentialGroup()

.addComponent(jTextField3,

javax.swing.GroupLayout.PREFERRED_SIZE,

70,

javax.swing.GroupLayout.PREFERRED_SIZE)

.addPreferredGap(

javax.swing.LayoutStyle.ComponentPlacement.RELATED)

.addGroup(

layout.createParallelGroup(

javax.swing.GroupLayout.Alignment.LEADING,

false)

.addGroup(

layout.createSequentialGroup()

.addGroup(

layout.createParallelGroup(

javax.swing.GroupLayout.Alignment.BASELINE)

.addComponent(

jButton2)

.addComponent(

jButton3)

.addComponent(

jButton4))

.addPreferredGap(

javax.swing.LayoutStyle.ComponentPlacement.RELATED)

.addGroup(

layout.createParallelGroup(

javax.swing.GroupLayout.Alignment.BASELINE)

.addComponent(

jButton5)

.addComponent(

jButton6)

.addComponent(

jButton7))

.addPreferredGap(

javax.swing.LayoutStyle.ComponentPlacement.RELATED)

.addGroup(

layout.createParallelGroup(

javax.swing.GroupLayout.Alignment.BASELINE)

.addComponent(

jButton9)

.addComponent(

jButton10)

.addComponent(

jButton8))

.addPreferredGap(

javax.swing.LayoutStyle.ComponentPlacement.RELATED)

.addComponent(

jButton13))

.addGroup(

layout.createSequentialGroup()

.addComponent(

jButton14)

.addPreferredGap(

javax.swing.LayoutStyle.ComponentPlacement.RELATED)

.addComponent(

jButton17)

.addPreferredGap(

javax.swing.LayoutStyle.ComponentPlacement.RELATED)

.addComponent(

jButton16)

.addPreferredGap(

javax.swing.LayoutStyle.ComponentPlacement.RELATED)

.addComponent(

jButton15))

.addComponent(

jButton18,

javax.swing.GroupLayout.DEFAULT_SIZE,

javax.swing.GroupLayout.DEFAULT_SIZE,

Short.MAX_VALUE)

.addComponent(

jToggleButton1,

javax.swing.GroupLayout.DEFAULT_SIZE,

javax.swing.GroupLayout.DEFAULT_SIZE,

Short.MAX_VALUE))

.addContainerGap(

javax.swing.GroupLayout.DEFAULT_SIZE,

Short.MAX_VALUE)));


pack();

}// </editor-fold>


public static void main(String args[]) {

/* Set the Nimbus look and feel */

// <editor-fold defaultstate="collapsed"

// desc=" Look and feel setting code (optional) ">

/*

* If Nimbus (introduced in Java SE 6) is not available, stay with the

* default look and feel. For details see

* http://download.oracle.com/javase

* /tutorial/uiswing/lookandfeel/plaf.html

*/

try {

for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager

.getInstalledLookAndFeels()) {

if ("Nimbus".equals(info.getName())) {

javax.swing.UIManager.setLookAndFeel(info.getClassName());

break;

}

}

} catch (ClassNotFoundException ex) {

java.util.logging.Logger.getLogger(NewJFrame.class.getName()).log(

java.util.logging.Level.SEVERE, null, ex);

} catch (InstantiationException ex) {

java.util.logging.Logger.getLogger(NewJFrame.class.getName()).log(

java.util.logging.Level.SEVERE, null, ex);

} catch (IllegalAccessException ex) {

java.util.logging.Logger.getLogger(NewJFrame.class.getName()).log(

java.util.logging.Level.SEVERE, null, ex);

} catch (javax.swing.UnsupportedLookAndFeelException ex) {

java.util.logging.Logger.getLogger(NewJFrame.class.getName()).log(

java.util.logging.Level.SEVERE, null, ex);

}

// </editor-fold>


/* Create and display the form */

java.awt.EventQueue.invokeLater(new Runnable() {

public void run() {

new NewJFrame().setVisible(true);

}

});

}


// Variables declaration - do not modify

private javax.swing.JButton jButton10;

private javax.swing.JButton jButton13;

private javax.swing.JButton jButton14;

private javax.swing.JButton jButton15;

private javax.swing.JButton jButton16;

private javax.swing.JButton jButton17;

private javax.swing.JButton jButton18;

private javax.swing.JButton jButton2;

private javax.swing.JButton jButton3;

private javax.swing.JButton jButton4;

private javax.swing.JButton jButton7;

private javax.swing.JButton jButton5;

private javax.swing.JButton jButton6;

private javax.swing.JButton jButton8;

private javax.swing.JButton jButton9;

private javax.swing.JTextField jTextField3;

private javax.swing.JToggleButton jToggleButton1;


// End of variables declaration

@Override

public void actionPerformed(ActionEvent arg0) {

// TODO Auto-generated method stub

if (arg0.getSource() == jButton2) {

jTextField3.setText(jTextField3.getText() + 1);

} else if (arg0.getSource() == jButton3) {

jTextField3.setText(jTextField3.getText() + "2");

} else if (arg0.getSource() == jButton4) {

jTextField3.setText(jTextField3.getText() + "3");

} else if (arg0.getSource() == jButton7) {

jTextField3.setText(jTextField3.getText() + "4");

} else if (arg0.getSource() == jButton5) {

jTextField3.setText(jTextField3.getText() + "5");

} else if (arg0.getSource() == jButton6) {

jTextField3.setText(jTextField3.getText() + "6");

} else if (arg0.getSource() == jButton8) {

jTextField3.setText(jTextField3.getText() + "7");

} else if (arg0.getSource() == jButton9) {

jTextField3.setText(jTextField3.getText() + "8");

} else if (arg0.getSource() == jButton10) {

jTextField3.setText(jTextField3.getText() + "9");

} else if (arg0.getSource() == jButton13) {

jTextField3.setText(jTextField3.getText() + "0");

} else if (arg0.getSource() == jButton14) {// +

tempValue = Integer.parseInt(jTextField3.getText());

operator = '+';

jTextField3.setText("");

} else if (arg0.getSource() == jButton15) {// /

tempValue = Integer.parseInt(

jTextField3.getText());

operator = '/';

jTextField3.setText("");

} else if (arg0.getSource() == jButton16) {// x

tempValue = Integer.parseInt(jTextField3.getText());

operator = '*';

jTextField3.setText("");

} else if (arg0.getSource() == jButton17) {// -

tempValue = Integer.parseInt(jTextField3.getText());

operator = '-';

jTextField3.setText("");

} else if (arg0.getSource() == jButton18) {// -

int tempValue2 = Integer.parseInt(

jTextField3.getText());

int resultValue = 0;

if (operator == '+') {

resultValue = tempValue + tempValue2;

} else if (operator == '-') {

resultValue = tempValue - tempValue2;

} else if (operator == '*') {

resultValue = tempValue * tempValue2;

} else if (operator == '/') {

resultValue = tempValue / tempValue2;

}

jTextField3.setText("" + resultValue);

}

}


int tempValue;

char operator;

}



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JAVA 소수를 구하는 프로그램 GUI #2

Programming/JAVA,JSP 2013. 12. 21. 17:00 Posted by TanSanC
336x280(권장), 300x250(권장), 250x250, 200x200 크기의 광고 코드만 넣을 수 있습니다.

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

 

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JPanel;

import javax.swing.JTextField;

 

class MyFrame extends JFrame {

   private JButton button;

   private JTextField text, result;

 

   public MyFrame() {

       setSize(300, 130);

       setTitle("제곱 계산하기");

   setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

 

       ButtonListener listener = new ButtonListener(); // 리스너 객체 생성

 

       JPanel panel = new JPanel();

       panel.add(new JLabel("숫자 입력: ")); // 레이블 생성

       text = new JTextField(15); // 컬럼수가 15인 텍스트 필드 생성

       text.addActionListener(listener); // 텍스트 필드에 리스너 연결

       panel.add(text);

 

       panel.add(new JLabel("제곱한 값: "));

       result = new JTextField(15); // 결과를 나타낼 텍스트 필드

       result.setEditable(false); // 편집 불가 설정

       panel.add(result);

       button = new JButton("OK");

       button.addActionListener(listener);

       panel.add(button);

       add(panel);

       setVisible(true);

   }

 

   // 텍스트 필드와 버튼의 액션 이벤트 처리

   private class ButtonListener implements ActionListener {

       public void actionPerformed(ActionEvent e) {

          if (e.getSource() == button || e.getSource() == text) {

             String name = text.getText();

             int value = 0;

             try {

                value = Integer.parseInt(name);

 

                 boolean isPrimeNumber = false;

 

                 // 계산

                 int count = 0;

                 for (int i = 1; i <= value; i++) {

                    // 계산

                    if (value % i == 0) {

                       count++;

                    }

 

                 }

 

                 if (count == 2) {

                    isPrimeNumber = true;

                 }

 

                 if (isPrimeNumber) {

                    result.setText("소수입니다.");

                 } else {

                    result.setText("소수가 아닙니다.");

                 }

            } catch (NumberFormatException e1) {

                 result.setText("숫자를 입력해주세요!!");

             }

             text.requestFocus();

          }

       }

   }

}

 

public class TextFieldTest extends JFrame {

   public static void main(String[] args) {

       new MyFrame();

   }

}

 

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JAVA 버블 정렬

Programming/JAVA,JSP 2013. 11. 30. 16:57 Posted by TanSanC
336x280(권장), 300x250(권장), 250x250, 200x200 크기의 광고 코드만 넣을 수 있습니다.

package com.tistory.tansanc.mainClass;

 

import java.util.Scanner;

 

public class ComputerTest {

   public static void main(String[] args) {

       int[] array = { 3, 9, 7, 1, 2, 5 };

       // { 3, 7, 1, 2, 5, 9 };

       // { 3, 1, 2, 5, 7, 9 };

       // { 1, 2, 3, 5, 7, 9 };

       int i, j;

      

      for( j = 0 ; j < array.length - 1; j++ )

       {

          for( i = 0 ; i < array.length - j - 1;

                 i++ )

          {

             if ( array[i] > array[i+1] )

             {

                 int temp = array[i];

                 array[i] = array[i+1];

                 array[i+1] = temp;

             }           

          }

       }

       for( i = 0 ; i < array.length ; i++ )

       {     

          System.out.println(array[i]);

       }

   }

}

 

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JAVA 계산기 프로그램 부분완성

Programming/JAVA,JSP 2013. 8. 16. 14:25 Posted by TanSanC
336x280(권장), 300x250(권장), 250x250, 200x200 크기의 광고 코드만 넣을 수 있습니다.
package com.tansanc.tistory;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JPanel;

import javax.swing.JTextField;

class Cal extends JFrame
{

	private JTextField t1;

	private JButton b1, b2, b3, b4, b5, b6, b7, b8, b9, b0;

	JButton pl, mi, mu, di, cal, c;

	String x, y;

	public Cal()
	{

		setSize(285, 350);

		setDefaultCloseOperation(EXIT_ON_CLOSE);

		setTitle("Calculator");

		JPanel p = new JPanel();

		p.setLayout(null);

		t1 = new JTextField(10);

		p.add(t1);

		b1 = new JButton("1");

		p.add(b1);

		b1.addActionListener(new Number());

		b2 = new JButton("2");

		p.add(b2);

		b2.addActionListener(new Number());

		b3 = new JButton("3");

		p.add(b3);

		b3.addActionListener(new Number());

		b4 = new JButton("4");

		p.add(b4);

		b4.addActionListener(new Number());

		b5 = new JButton("5");

		p.add(b5);

		b5.addActionListener(new Number());

		b6 = new JButton("6");

		p.add(b6);

		b6.addActionListener(new Number());

		b7 = new JButton("7");

		p.add(b7);

		b7.addActionListener(new Number());

		b8 = new JButton("8");

		p.add(b8);

		b8.addActionListener(new Number());

		b9 = new JButton("9");

		p.add(b9);

		b9.addActionListener(new Number());

		b0 = new JButton("0");

		p.add(b0);

		b0.addActionListener(new Number());

		pl = new JButton("+");

		p.add(pl);

		pl.addActionListener(new Number());

		mi = new JButton("-");

		p.add(mi);

		mi.addActionListener(new Number());

		mu = new JButton("*");

		p.add(mu);

		mu.addActionListener(new Number());

		di = new JButton("/");

		p.add(di);

		di.addActionListener(new Number());

		cal = new JButton("=");

		p.add(cal);

		cal.addActionListener(new Number());

		c = new JButton("C");

		p.add(c);

		c.addActionListener(new Number());

		t1.setBounds(10, 10, 245, 80);

		b1.setBounds(10, 105, 45, 45);

		b2.setBounds(60, 105, 45, 45);

		b3.setBounds(110, 105, 45, 45);

		b4.setBounds(10, 155, 45, 45);

		b5.setBounds(60, 155, 45, 45);

		b6.setBounds(110, 155, 45, 45);

		b7.setBounds(10, 205, 45, 45);

		b8.setBounds(60, 205, 45, 45);

		b9.setBounds(110, 205, 45, 45);

		b0.setBounds(60, 255, 45, 45);

		pl.setBounds(160, 105, 45, 45);

		mi.setBounds(160, 155, 45, 45);

		mu.setBounds(160, 205, 45, 45);

		di.setBounds(160, 255, 45, 45);

		c.setBounds(110, 255, 45, 45);

		cal.setBounds(210, 105, 45, 195);

		add(p);

		setVisible(true);

	}

	String operand1;
	String operator;
	private class Number implements ActionListener
	{

		public void actionPerformed(ActionEvent e)
		{
			if( e.getSource() == b1)
			{
				t1.setText(t1.getText() + "1");
			}
			else if( e.getSource() == b2)
			{
				t1.setText(t1.getText() + "2");
			}
			else if( e.getSource() == pl)
			{
				operand1 = t1.getText();
				operator = "+";
				t1.setText("");
			}
			else if( e.getSource() == cal)
			{
				if(operator == "+")
				{
					t1.setText("" + ( Integer.parseInt(operand1) + Integer.parseInt(t1.getText())) );
				}
			}
		}
	}

}

public class CardTest
{

	public static void main(String[] args)
	{

		Cal Cals = new Cal();

	}

}
저작자표시 변경금지 (새창열림)

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JAVA 계산기 레이아웃

Programming/JAVA,JSP 2013. 8. 16. 13:30 Posted by TanSanC
336x280(권장), 300x250(권장), 250x250, 200x200 크기의 광고 코드만 넣을 수 있습니다.
package com.tansanc.tistory;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JPanel;

import javax.swing.JTextField;

class Cal extends JFrame
{

	private JTextField t1;

	private JButton b1, b2, b3, b4, b5, b6, b7, b8, b9, b0;

	JButton pl, mi, mu, di, cal, c;

	String x, y;

	public Cal()
	{

		setSize(285, 350);

		setDefaultCloseOperation(EXIT_ON_CLOSE);

		setTitle("Calculator");

		JPanel p = new JPanel();

		p.setLayout(null);

		t1 = new JTextField(10);

		p.add(t1);

		b1 = new JButton("1");

		p.add(b1);

		b1.addActionListener(new Number());

		b2 = new JButton("2");

		p.add(b2);

		b2.addActionListener(new Number());

		b3 = new JButton("3");

		p.add(b3);

		b3.addActionListener(new Number());

		b4 = new JButton("4");

		p.add(b4);

		b4.addActionListener(new Number());

		b5 = new JButton("5");

		p.add(b5);

		b5.addActionListener(new Number());

		b6 = new JButton("6");

		p.add(b6);

		b6.addActionListener(new Number());

		b7 = new JButton("7");

		p.add(b7);

		b7.addActionListener(new Number());

		b8 = new JButton("8");

		p.add(b8);

		b8.addActionListener(new Number());

		b9 = new JButton("9");

		p.add(b9);

		b9.addActionListener(new Number());

		b0 = new JButton("0");

		p.add(b0);

		b0.addActionListener(new Number());

		pl = new JButton("+");

		p.add(pl);

		pl.addActionListener(new Number());

		mi = new JButton("-");

		p.add(mi);

		mi.addActionListener(new Number());

		mu = new JButton("*");

		p.add(mu);

		mu.addActionListener(new Number());

		di = new JButton("/");

		p.add(di);

		di.addActionListener(new Number());

		cal = new JButton("=");

		p.add(cal);

		cal.addActionListener(new Number());

		c = new JButton("C");

		p.add(c);

		c.addActionListener(new Number());

		t1.setBounds(10, 10, 245, 80);

		b1.setBounds(10, 105, 45, 45);

		b2.setBounds(60, 105, 45, 45);

		b3.setBounds(110, 105, 45, 45);

		b4.setBounds(10, 155, 45, 45);

		b5.setBounds(60, 155, 45, 45);

		b6.setBounds(110, 155, 45, 45);

		b7.setBounds(10, 205, 45, 45);

		b8.setBounds(60, 205, 45, 45);

		b9.setBounds(110, 205, 45, 45);

		b0.setBounds(60, 255, 45, 45);

		pl.setBounds(160, 105, 45, 45);

		mi.setBounds(160, 155, 45, 45);

		mu.setBounds(160, 205, 45, 45);

		di.setBounds(160, 255, 45, 45);

		c.setBounds(110, 255, 45, 45);

		cal.setBounds(210, 105, 45, 195);

		add(p);

		setVisible(true);

	}

	private class Number implements ActionListener
	{

		public void actionPerformed(ActionEvent e)
		{

		}

	}

}

public class CardTest
{

	public static void main(String[] args)
	{

		Cal Cals = new Cal();

	}

}
저작자표시 변경금지 (새창열림)

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JAVA 타자연습 프로그램

Programming/JAVA,JSP 2013. 8. 13. 12:18 Posted by TanSanC
336x280(권장), 300x250(권장), 250x250, 200x200 크기의 광고 코드만 넣을 수 있습니다.
package com.tansanc.tistory;

import java.awt.BorderLayout;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.util.ArrayList;
import java.util.Random;

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTextField;

class MyFrame extends JFrame implements KeyListener
{
	JLabel staticText;
	JTextField inputText;
	JLabel resultText;
	long start;
	long end;
	String problemArray[] =
	{ "JAVA", "안녕하세요" };
	ArrayList problemList = new ArrayList();

	public MyFrame()
	{
		problemList.add("JAVA");
		problemList.add("안녕하세요");
		this.setSize(300, 200);
		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		this.setTitle("이벤트 예제");
		staticText = new JLabel("Hello World");
		add(staticText, BorderLayout.NORTH);
		inputText = new JTextField("");
		add(inputText, BorderLayout.CENTER);
		resultText = new JLabel("Hello World");
		add(resultText, BorderLayout.SOUTH);

		inputText.addKeyListener(this);

		setVisible(true);
		start = System.currentTimeMillis();
	}

	@Override
	public void keyPressed(KeyEvent e)
	{
	}

	@Override
	public void keyReleased(KeyEvent e)
	{

	}

	@Override
	public void keyTyped(KeyEvent e)
	{
		if (staticText.getText().equals(inputText.getText()))
		{
			Random r = new Random();
			end = System.currentTimeMillis();
			resultText.setText("정답입니다. " + inputText.getText().length()
					/ ((end - start) / 1000.0 / 60.0));
			staticText.setText(problemList.get(r.nextInt(2)));
			inputText.setText("");
		}
	}
}

public class Test
{
	public static void main(String[] args)
	{
		MyFrame t = new MyFrame();
	}
}
저작자표시 변경금지 (새창열림)

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JAVA 실습 과제 , GUI

실습과제 모음 2013. 8. 12. 14:17 Posted by TanSanC
336x280(권장), 300x250(권장), 250x250, 200x200 크기의 광고 코드만 넣을 수 있습니다.
package com.tansanc.tistory;

import java.awt.BorderLayout;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTextField;

class MyFrame extends JFrame implements KeyListener
{
	public MyFrame()
	{
		this.setSize(300, 200);
		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		this.setTitle("이벤트 예제");
		JLabel staticText = new JLabel("Hello World");
		add(staticText, BorderLayout.NORTH);
		JTextField inputText = new JTextField("입력창");
		add(inputText, BorderLayout.CENTER);
		JLabel resultText = new JLabel("Hello World");
		add(resultText, BorderLayout.SOUTH);
		
		inputText.addKeyListener(this);
		
		setVisible(true);
	}
	@Override
	public void keyPressed(KeyEvent e)
	{		
	}
	@Override
	public void keyReleased(KeyEvent e)
	{		
	}
	@Override
	public void keyTyped(KeyEvent e)
	{		
	}
}

public class Test
{
	public static void main(String[] args)
	{
		MyFrame t = new MyFrame();
	}
}
저작자표시 변경금지 (새창열림)

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JAVA Console Token 구현

Programming/JAVA,JSP 2013. 8. 7. 13:37 Posted by TanSanC
336x280(권장), 300x250(권장), 250x250, 200x200 크기의 광고 코드만 넣을 수 있습니다.
public class Test
{
	public static void main(String[] args)
	{
		String text = "AAA BBB CCC DDD EEE FFF";
		int count = 0;

		for (int i = 0; i < text.length(); i++)
		{
			if (text.charAt(i) == ' ')
			{
				count++;
			} else
			{
			}
		}
		String[] textResult = new String[count + 1];

		int i, j, k;
		for (i = 0; i < text.length(); i++)
		{
			if (text.charAt(i) == ' ')
			{
				textResult[0] = text.substring(0, i);
				break;
			}
		}
		System.out.print(textResult[0]);
		int lastValue =	0;
		for (k = 1; i < text.length(); k++)
		{
			i = i + 1;
			j = i;
			for (; i < text.length(); i++)
			{
				if (text.charAt(i) == ' ')
				{
					System.out.print("\n");
					textResult[k] = text.substring(j, i);
					lastValue = i;
					break;
				}
			}
		}
		textResult[k-1] = text.substring(lastValue+1 , text.length() );		
		for( String s : textResult )
		{
			System.out.println(s);
		}
	}
}
시스템 라이브러리를 활용 
public class Test
{
	public static void main(String[] args)
	{
		String text = "AAA BBB CCC DDD EEE FFF";
		
		StringTokenizer st = new StringTokenizer(text, " ");
		
		while(st.hasMoreTokens() )
		{
			System.out.println(st.nextToken());
		}
	}
}
저작자표시 변경금지 (새창열림)

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JAVA 제네릭을 사용한 Store Class

Programming/JAVA,JSP 2013. 8. 7. 12:13 Posted by TanSanC
336x280(권장), 300x250(권장), 250x250, 200x200 크기의 광고 코드만 넣을 수 있습니다.
package com.tansanc.tistory;

class Store
{
	private T[] data = (T[]) new Object[0];

	void add(T o)
	{
		if (data.length == 0)
		{
			data = (T[]) new Object[1];
			data[0] = o;
		} else
		{
			T[] temp = data;
			data = (T[]) new Object[data.length + 1];
			for (int i = 0; i < temp.length; i++)
			{
				data[i] = temp[i];
			}
			data[temp.length] = o;
		}
	}

	T get(int i)
	{
		return data[i];
	}
}

public class Test
{
	public static void main(String[] args)
	{
		Store s = new Store();
		s.add(3);
		s.add(4);
		System.out.println((Integer) s.get(0) + (Integer) s.get(1));
	}
}
저작자표시 변경금지 (새창열림)

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