java基础课程设计代码 java程序设计课程设计

Java课程设计!急!!!(高分)

我帮你编写了一部分,实现了“输入十个同学的相关信息,并在文本框中显示”(图形界面实现)。

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要实现接下去的功能其实也真的不难的,但是真的很麻烦、很浪费时间……我就帮你做到这里了,你自己添加一下代码就可以(或者提高悬赏的话可以考虑考虑啊!哈哈……)代码如下:

import java.awt.BorderLayout;

import javax.swing.JPanel;

import javax.swing.JFrame;

import java.awt.Dimension;

import javax.swing.JButton;

import java.awt.Rectangle;

import javax.swing.JLabel;

import javax.swing.SwingConstants;

import javax.swing.JScrollPane;

import javax.swing.JTextArea;

import javax.swing.JOptionPane;

public class TongJi extends JFrame {

private static final long serialVersionUID = 1L;

private JPanel jContentPane = null;

private JButton jButton = null;

private JLabel jLabel = null;

private JScrollPane jScrollPane = null;

private JTextArea jTextArea = null;

/**

* This is the default constructor

*/

public TongJi() {

super();

initialize();

}

/**

* This method initializes this

*

* @return void

*/

private void initialize() {

this.setSize(412, 372);

this.setContentPane(getJContentPane());

this.setTitle("成绩统计");

this.addWindowListener(new java.awt.event.WindowAdapter() {

public void windowClosing(java.awt.event.WindowEvent e) {

System.exit(0);

}

});

this.setVisible(true);

}

/**

* This method initializes jContentPane

*

* @return javax.swing.JPanel

*/

private JPanel getJContentPane() {

if (jContentPane == null) {

jLabel = new JLabel();

jLabel.setBounds(new Rectangle(18, 66, 65, 18));

jLabel.setHorizontalAlignment(SwingConstants.CENTER);

jLabel.setText("统计结果:");

jContentPane = new JPanel();

jContentPane.setLayout(null);

jContentPane.add(getJButton(), null);

jContentPane.add(jLabel, null);

jContentPane.add(getJScrollPane(), null);

}

return jContentPane;

}

/**

* This method initializes jButton

*

* @return javax.swing.JButton

*/

private JButton getJButton() {

if (jButton == null) {

jButton = new JButton();

jButton.setBounds(new Rectangle(18, 16, 86, 28));

jButton.setText("开始统计");

jButton.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent e) {

/////录入成绩信息

String[][] mymsg=new String[10][6];

for(int i=0;i10;i++){

String strnum=JOptionPane.showInputDialog(null, "请输入第"+(i+1)+"个学生的学号", "信息录入", JOptionPane.WARNING_MESSAGE);

String strname=JOptionPane.showInputDialog(null, "请输入第"+(i+1)+"个学生的姓名", "信息录入", JOptionPane.WARNING_MESSAGE);

String doublemath=JOptionPane.showInputDialog(null, "请输入第"+(i+1)+"个学生的数学成绩", "信息录入", JOptionPane.WARNING_MESSAGE);

String doubleeng=JOptionPane.showInputDialog(null, "请输入第"+(i+1)+"个学生的英语成绩", "信息录入", JOptionPane.WARNING_MESSAGE);

String doublejava=JOptionPane.showInputDialog(null, "请输入第"+(i+1)+"个学生的JAVA成绩", "信息录入", JOptionPane.WARNING_MESSAGE);

String doublecomp=JOptionPane.showInputDialog(null, "请输入第"+(i+1)+"个学生的计算机成绩", "信息录入", JOptionPane.WARNING_MESSAGE);

mymsg[i][0]=strnum;

mymsg[i][1]=strname;

mymsg[i][2]=doublemath;

mymsg[i][3]=doubleeng;

mymsg[i][4]=doublejava;

mymsg[i][5]=doublecomp;

}

////显示成绩信息

jTextArea.setText("学号    姓名    数学    英语    JAVA    计算机");

for(int i=0;i10;i++){

jTextArea.setText(jTextArea.getText()+"\r\n");

for(int j=0;j6;j++){

jTextArea.setText(jTextArea.getText()+mymsg[i][j]+"    ");

}

}

}

});

}

return jButton;

}

/**

* This method initializes jScrollPane

*

* @return javax.swing.JScrollPane

*/

private JScrollPane getJScrollPane() {

if (jScrollPane == null) {

jScrollPane = new JScrollPane();

jScrollPane.setBounds(new Rectangle(18, 86, 370, 230));

jScrollPane.setViewportView(getJTextArea());

}

return jScrollPane;

}

/**

* This method initializes jTextArea

*

* @return javax.swing.JTextArea

*/

private JTextArea getJTextArea() {

if (jTextArea == null) {

jTextArea = new JTextArea();

jTextArea.setEditable(false);

}

return jTextArea;

}

public static void main(String args[]){

new TongJi();

}

}  //  @jve:decl-index=0:visual-constraint="10,10"

效果如下图:

JAVA课程设计计算器的源代码

比较完整的Java计算器

import javax.swing.*;

import javax.swing.event.*;

import java.awt.*;

import java.awt.event.*;

public class calculator extends JFrame implements ActionListener

{//这里我把JFrame写成Frame,这个错误找了好久

JFrame frame;

private JButton jia=new JButton("+");

private JButton jian=new JButton("-");

private JButton cheng=new JButton("*");

private JButton chu=new JButton("/");

private JButton qiuyi=new JButton("%");

private JButton deng=new JButton("=");

private JButton fu=new JButton("+/-");

private JButton dian=new JButton(".");

private JButton kai=new JButton("sqrt");

private JButton diao=new JButton("1/x");

private JButton aa=new JButton("A");

private JButton bb=new JButton("B");

private JButton cc=new JButton("C");

private JButton dd=new JButton("D");

private JButton ee=new JButton("E");

private JButton ff=new JButton("F");

private TextField k1=new TextField();

private objConversion convert = new objConversion();

JMenuItem copy,paste,s,t,help,about,me;

JRadioButton sixteen,ten,eight,two;

JButton backspace,ce,c,num0,num1,num2,num3,num4,num5,num6,num7,num8,num9;

Container cp;

JTextField text;

String copycontent="";

boolean clickable=true,clear=true;

int all=0;

double qian;

String fuhao;

int jin=10,first=1;

public calculator()

{

setTitle("计算器-杨彩制作");

setSize(400,300);

setLocation(250,200);

text=new JTextField(25);

// text.setEnabled(false);

text.setText("0.");

text.setHorizontalAlignment(JTextField.RIGHT);//从右到左

JPanel cp1=new JPanel();

JPanel cp2=new JPanel();

JPanel cp3=new JPanel();

cp=getContentPane();

cp.add(cp1,"North");

cp.add(cp2,"Center");

cp.add(cp3,"South");

cp1.setLayout(new GridLayout(1,6));

cp2.setLayout(new GridLayout(2,4));

cp3.setLayout(new GridLayout(6,6));

sixteen=new JRadioButton("十六进制");

sixteen.setVisible(false);

ten=new JRadioButton("十进制",true);

ten.setVisible(false);

eight=new JRadioButton("八进制");

eight.setVisible(false);

two=new JRadioButton("二进制");

two.setVisible(false);

sixteen.addActionListener(this);

ten.addActionListener(this);

eight.addActionListener(this);

two.addActionListener(this);

ButtonGroup btg=new ButtonGroup();

btg.add(sixteen);

btg.add(ten);

btg.add(eight);

btg.add(two);

JTextField t3=new JTextField(25);

cp1.add(text);

// text.setEnabled(false);

text.setEditable(false);

text.setBackground(new Color(255, 255, 255));

cp2.add(sixteen);

cp2.add(ten);

cp2.add(eight);

cp2.add(two);

backspace=new JButton("Backspace");

backspace.setForeground(new Color(255,0,0));

backspace.addActionListener(this);

ce=new JButton("CE");

ce.setForeground(new Color(255,0,0));

ce.addActionListener(this);

c=new JButton("C");

c.setForeground(new Color(255,0,0));

c.addActionListener(this);

k1.setVisible(false);

cp2.add(k1);

cp2.add(backspace);

cp2.add(ce);

cp2.add(c);

num0=new JButton("0");

num1=new JButton("1");

num2=new JButton("2");

num3=new JButton("3");

num4=new JButton("4");

num5=new JButton("5");

num6=new JButton("6");

num7=new JButton("7");

num8=new JButton("8");

num9=new JButton("9");

cp3.add(num7);

num7.addActionListener(this);

cp3.add(num8);

num8.addActionListener(this);

cp3.add(num9);

num9.addActionListener(this);

cp3.add(chu);

chu.setForeground(new Color(255,0,0));

chu.addActionListener(this);

cp3.add(kai);

kai.addActionListener(this);

cp3.add(num4);

num4.addActionListener(this);

cp3.add(num5);

num5.addActionListener(this);

cp3.add(num6);

num6.addActionListener(this);

cp3.add(cheng);

cheng.setForeground(new Color(255,0,0));

cheng.addActionListener(this);

cp3.add(qiuyi);

qiuyi.addActionListener(this);

cp3.add(num1);

num1.addActionListener(this);

cp3.add(num2);

num2.addActionListener(this);

cp3.add(num3);

num3.addActionListener(this);

cp3.add(jian);

jian.setForeground(new Color(255,0,0));

jian.addActionListener(this);

cp3.add(diao);

diao.addActionListener(this);

cp3.add(num0);

num0.addActionListener(this);

cp3.add(fu);

fu.addActionListener(this);

cp3.add(dian);

dian.addActionListener(this);

cp3.add(jia);

jia.setForeground(new Color(255,0,0));

jia.addActionListener(this);

cp3.add(deng);

deng.setForeground(new Color(255,0,0));

deng.addActionListener(this);

cp3.add(aa);

aa.addActionListener(this);

cp3.add(bb);

bb.addActionListener(this);

cp3.add(cc);

cc.addActionListener(this);

cp3.add(dd);

dd.addActionListener(this);

cp3.add(ee);

ee.addActionListener(this);

cp3.add(ff);

ff.addActionListener(this);

aa.setVisible(false);

bb.setVisible(false);

cc.setVisible(false);

dd.setVisible(false);

ee.setVisible(false);

ff.setVisible(false);

JMenuBar mainMenu = new JMenuBar();

setJMenuBar(mainMenu);

JMenu editMenu = new JMenu("编辑");

JMenu viewMenu = new JMenu("查看");

JMenu helpMenu = new JMenu("帮助");

mainMenu.add(editMenu);

mainMenu.add(viewMenu);

mainMenu.add(helpMenu);

copy = new JMenuItem(" 复制");

paste = new JMenuItem(" 粘贴");

KeyStroke copyks=KeyStroke.getKeyStroke(KeyEvent.VK_C,Event.CTRL_MASK);

copy.setAccelerator(copyks);//设置退出菜单选项加上快捷键

KeyStroke pasteks=KeyStroke.getKeyStroke(KeyEvent.VK_V,Event.CTRL_MASK);

paste.setAccelerator(pasteks);//设置退出菜单选项加上快捷键

editMenu.add(copy);

editMenu.add(paste);

copy.addActionListener(this);

paste.addActionListener(this);

t = new JMenuItem("●标准型");

s = new JMenuItem(" 科学型");

viewMenu.add(t);

viewMenu.add(s);

t.addActionListener(this);

s.addActionListener(this);

help = new JMenuItem(" 帮助主题");

about = new JMenuItem(" 关于计算器");

me = new JMenuItem(" 作者主页");

helpMenu.add(help);

helpMenu.add(about);

helpMenu.add(me);

help.addActionListener(this);

about.addActionListener(this);

me.addActionListener(this);

addWindowListener(new WindowDestroyer());//结束窗口

}

public void actionPerformed(ActionEvent e)

{//响应动作代码

if(first==1)

text.setText("");

first=0;//第一次把文本框0.清空

Object temp = e.getSource();

if(temp==copy)

{

copycontent = text.getText();

}

if(temp==paste)

{

text.setText(text.getText()+copycontent);

}

if(temp==t)

{//标准

sixteen.setVisible(false);

ten.setVisible(false);

eight.setVisible(false);

two.setVisible(false);

t.setText("●标准型");

s.setText(" 科学型");

aa.setVisible(false);

bb.setVisible(false);

cc.setVisible(false);

dd.setVisible(false);

ee.setVisible(false);

ff.setVisible(false);

}

if(temp==s)

{//科学

sixteen.setVisible(true);

ten.setVisible(true);

eight.setVisible(true);

two.setVisible(true);

t.setText(" 标准型");

s.setText("●科学型");

aa.setVisible(true);

bb.setVisible(true);

cc.setVisible(true);

dd.setVisible(true);

ee.setVisible(true);

ff.setVisible(true);

aa.setEnabled(false);

bb.setEnabled(false);

cc.setEnabled(false);

dd.setEnabled(false);

ee.setEnabled(false);

ff.setEnabled(false);

}

if(temp==help)

{ //打开系统帮助文件 要查资料

try

{

String filePath = "C:/WINDOWS/Help/calc.chm";

Runtime.getRuntime().exec("cmd.exe /c "+filePath);

}

catch(Exception eeee)

{

System.out.println("打开系统的计算器出错");

}

}

if(temp==about)

{

JOptionPane.showMessageDialog(frame," Java计算器\n 杨彩 制作\n\n ","关于计算器",JOptionPane.INFORMATION_MESSAGE); ;

}

if(temp==me)

{

try

{

Process p = Runtime.getRuntime().exec("explorer ");

}

catch(Exception eeee)

{

System.out.println("打开指定网页出错");

}

}

try

{

if(temp==sixteen)

{

String hex=text.getText();

int inthex=Integer.parseInt(hex,jin);//先把数变为10进制

text.setText(convert.decHex(inthex)) ;

jin=16;

aa.setEnabled(true);

bb.setEnabled(true);

cc.setEnabled(true);

dd.setEnabled(true);

ee.setEnabled(true);

ff.setEnabled(true);

num2.setEnabled(true);

num3.setEnabled(true);

num4.setEnabled(true);

num5.setEnabled(true);

num6.setEnabled(true);

num7.setEnabled(true);

num8.setEnabled(true);

num9.setEnabled(true);

}

if(temp==eight)

{

String oct =text.getText();

int intoct=Integer.parseInt(oct,jin);

text.setText(convert.decOct(intoct)) ;

jin=8;

aa.setEnabled(false);

bb.setEnabled(false);

cc.setEnabled(false);

dd.setEnabled(false);

ee.setEnabled(false);

ff.setEnabled(false);

num2.setEnabled(true);

num3.setEnabled(true);

num4.setEnabled(true);

num5.setEnabled(true);

num6.setEnabled(true);

num7.setEnabled(true);

num8.setEnabled(false);

num9.setEnabled(false);

}

if(temp==two)

{

String bin=text.getText();

int intbin=Integer.parseInt(bin,jin);

text.setText(convert.decBin(intbin));

jin=2;

aa.setEnabled(false);

bb.setEnabled(false);

cc.setEnabled(false);

dd.setEnabled(false);

ee.setEnabled(false);

ff.setEnabled(false);

num2.setEnabled(false);

num3.setEnabled(false);

num4.setEnabled(false);

num5.setEnabled(false);

num6.setEnabled(false);

num7.setEnabled(false);

num8.setEnabled(false);

num9.setEnabled(false);

}

if(temp==ten)

{

String dec=text.getText();

int intdec=Integer.parseInt(dec,jin);

// text.setText(convert.decDec(intdec)); //本句会把123变成321

text.setText(intdec+"");

jin=10;

aa.setEnabled(false);

bb.setEnabled(false);

cc.setEnabled(false);

dd.setEnabled(false);

ee.setEnabled(false);

ff.setEnabled(false);

num2.setEnabled(true);

num3.setEnabled(true);

num4.setEnabled(true);

num5.setEnabled(true);

num6.setEnabled(true);

num7.setEnabled(true);

num8.setEnabled(true);

num9.setEnabled(true);

}

}

catch(Exception ee)

{

System.out.println("转换出错,可能你没有输入任何字符");

text.setText("转换出错");

clear=false;

}

if(temp==backspace)

{//退格

String s = text.getText();

text.setText("");

for (int i = 0; i s.length() - 1; i++)

{

char a = s.charAt(i);

text.setText(text.getText() + a);

}

}

if (temp==ce)

{

text.setText("0.");

clear=true;

first=1;

}

if (temp==c)

{

text.setText("0."); ;

clear=true;

first=1;

}

if(temp==num0)

{

if(clear==false)//判断是否点击了符号位

text.setText("");

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

}

if(temp==num1)

{

if(clear==false)

text.setText("");

text.setText(text.getText()+"1");

clear=true;//第二次不在清空(前二句)

}

if(temp==num2)

{

if(clear==false)

text.setText("");

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

clear=true;

}

if(temp==num3)

{

if(clear==false)

text.setText("");

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

clear=true;

}

if(temp==num4)

{

if(clear==false)

text.setText("");

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

clear=true;

}

if(temp==num5)

{

if(clear==false)

text.setText("");

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

clear=true;

}

if(temp==num6)

{

if(clear==false)

text.setText("");

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

clear=true;

}

if(temp==num7)

{

if(clear==false)

text.setText("");

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

clear=true;

}

if(temp==num8)

{

if(clear==false)

text.setText("");

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

clear=true;

}

if(temp==num9)

{

if(clear==false)

text.setText("");

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

clear=true;

}

if(temp==aa)

{

text.setText(text.getText()+"A");

}

if(temp==bb)

{

text.setText(text.getText()+"B");

}

if(temp==cc)

{

text.setText(text.getText()+"C");

}

if(temp==dd)

{

text.setText(text.getText()+"D");

}

if(temp==ee)

{

text.setText(text.getText()+"E");

}

if(temp==ff)

{

text.setText(text.getText()+"F");

}

if(temp==dian)

{

clickable=true;

for (int i = 0; i text.getText().length(); i++)

if ('.' == text.getText().charAt(i))

{

clickable=false;

break;

} //第一层判断是否里面含有小数点;

if(clickable==true)//第二坛判断

text.setText(text.getText()+".");

}

try

{

if(temp==jia)

{//加法

qian=Double.parseDouble(text.getText());

fuhao="+";

clear=false;

}

if(temp==jian)

{

qian=Double.parseDouble(text.getText());

fuhao="-";

clear=false;

;

}

if(temp==cheng)

{

qian=Double.parseDouble(text.getText());

fuhao="*";

clear=false;

}

if(temp==chu)

{

qian=Double.parseDouble(text.getText());

fuhao="/";

clear=false;

}

if(temp==deng)

{

double ss=Double.parseDouble(text.getText());

text.setText("");

if(fuhao=="+")

text.setText(qian+ss+"");

if(fuhao=="-")

text.setText(qian-ss+"");

if(fuhao=="*")

text.setText(qian*ss+"");

if(fuhao=="/")

text.setText(qian/ss+"");

clear=false;//要清空前一次的数据

;

}

if(temp==kai)

{

String s = text.getText();

if (s.charAt(0) == '-')

{

text.setText("负数不能开根号");

}

else

text.setText(Double.toString(java.lang.Math.sqrt(Double.parseDouble(text.getText()))));

clear=false;

}

if(temp==diao)

{

if (text.getText().charAt(0) == '0'text.getText().length() == 1)

{

text.setText("除数不能为零");

}

else

{

boolean isDec = true;

int i, j, k;

String s = Double.toString(1 / Double.parseDouble(text.getText()));

for (i = 0; i s.length(); i++)

if (s.charAt(i) == '.')

break;

for (j = i + 1; j s.length(); j++)

if (s.charAt(j) != '0')

{

isDec = false;

break;

}

if (isDec == true)

{

String stemp = "";

for (k = 0; k i; k++)

stemp += s.charAt(k);

text.setText(stemp);

}

else

text.setText(s);

}

clear=false;

}

if(temp==qiuyi)

{

text.setText("0");

clear=false;

}

if (temp == fu)

{ //导师,此方法参考书中例子

boolean isNumber = true;

String s = text.getText();

for (int i = 0; i s.length(); i++)

if (! (s.charAt(i) = '0' s.charAt(i) = '9' || s.charAt(i) == '.' ||

s.charAt(i) == '-'))

{

isNumber = false;

break;

}

if (isNumber == true)

{

//如果当前字符串首字母有'-'号,代表现在是个负数,再按下时,则将首符号去掉

if (s.charAt(0) == '-')

{

text.setText("");

for (int i = 1; i s.length(); i++)

{

char a = s.charAt(i);

text.setText(text.getText() + a);

}

}

//如果当前字符串第一个字符不是符号,则添加一个符号在首字母处

else

text.setText('-' + s);

}

}

}

catch(Exception eee)

{

System.out.println("运算时,首先输入数字或字符");

text.setText("运算出错");

clear=false;

}

}

class WindowDestroyer extends WindowAdapter

{//退出窗口动作

public void windowClosing(WindowEvent e)

{

System.exit(0);

}

}

class objConversion

{//导师,本进制类参考了CSMD类转换例子

public void objConversion ()

{

}

public String decDec (int decNum)

{//10

String strDecNum = Integer.toString(decNum);

for (int i = strDecNum.length(); i 3; i++)

{

strDecNum = "0" + strDecNum;

}

// return strDecNum;

return invert (strDecNum, 5);

}

public String decHex (int decNum)

{//10 to 16

String strHexNum = "";

int currentNum = 0;

while (decNum != 0)

{

if (decNum 15)

{

currentNum = decNum % 16;

decNum /= 16;

}

else

{

currentNum = decNum;

decNum = 0;

}

switch (currentNum)

{

case 15: strHexNum += "F";

break;

case 14: strHexNum += "E";

break;

case 13: strHexNum += "D";

break;

case 12: strHexNum += "C";

break;

case 11: strHexNum += "B";

break;

case 10: strHexNum += "A";

break;

default: strHexNum += Integer.toString(currentNum);

break;

}

}

return invert (strHexNum, 2);

}

public String decOct (int decNum)

{//10 to 8

String strOctNum = "";

while (decNum != 0)

{

if (decNum 7)

{

strOctNum += Integer.toString(decNum % 8);

decNum /= 8;

}

else

{

strOctNum += Integer.toString(decNum);

decNum = 0;

}

}

return invert (strOctNum, 3);

}

public String decBin (int decNum)

{//10 to 2

String strBinNum = "";

while (decNum != 0)

{

if (decNum 1)

{

strBinNum += Integer.toString(decNum % 2);

decNum /= 2;

}

else

{

strBinNum += Integer.toString(decNum);

decNum = 0;

}

}

return invert (strBinNum, 8);

}

private String invert (String strNum, int minLength) //转换长度

{

String answer = "";

int length = strNum.length();

if (length minLength)

{

for (int padding = (minLength - length); padding 0; padding--)

{

answer += "0";

}

}

for (int i = length; i 0; i--)

{

answer += strNum.charAt (i - 1);

}

return answer;

}

}

public static void main(String arg[])//产生窗口

{

calculator win = new calculator();

win.setVisible(true);

}

}

java数组课程设计代码

public static void main(String[] args) {

/**

*

* (1)实现整型数组的创建要求由用户输入数组长度以及数组元素

*/

Scanner input = new Scanner(System.in);

System.out.print("请输入整型数组的长度:");

int lengthInt = input.nextInt();

int[] arrInt = new int[lengthInt];

for (int i = 0; i arrInt.length; i++) {

System.out.println("请输入第" + (i + 1) + "个元素");

arrInt[i] = input.nextInt();

}

System.out.print("整型数组:");

for (int i = 0; i arrInt.length; i++) {

System.out.print(arrInt[i] + "\t");

}

System.out.println();

/**

*

* (2)查找数组中最大值最小值以及求平均值

*/

int max = 0;

int min = arrInt[0];

double sum = 0;

for (int i = 0; i arrInt.length; i++) {

if (arrInt[i] max) {

max = arrInt[i];

}

if (arrInt[i] min) {

min = arrInt[i];

}

sum += arrInt[i];

}

double avg = sum / arrInt.length;

System.out.println("最大值:" + max);

System.out.println("最小值:" + min);

System.out.println("平均值:" + avg);

/**

*

* (3)实现数组的排序,有用户选择何种方式

*/

System.out.println("请选择排序的方式(输入数字即可):");

System.out.println("1:由小到大,2:由大到小");

int a = input.nextInt();

switch (a) {

case 1:

int i,

j,

t;

for (i = 0; i arrInt.length - 1; i++) {

for (j = 0; j arrInt.length - i - 1; j++) {

if (arrInt[j + 1] arrInt[j]) {

t = arrInt[j + 1];

arrInt[j + 1] = arrInt[j];

arrInt[j] = t;

}

}

}

break;

case 2:

int x,

y,

z;

for (x = 0; x arrInt.length - 1; x++) {

for (y = 0; y arrInt.length - x - 1; y++) {

if (arrInt[y + 1] arrInt[y]) {

z = arrInt[y + 1];

arrInt[y + 1] = arrInt[y];

arrInt[y] = z;

}

}

}

break;

default:

System.out.println("输入有误");

break;

}

for (int k = 0; k arrInt.length; k++) {

System.out.print(arrInt[k] + "\t");

}

System.out.println();

/**

*

* (4)实现数组的插入,并对插入后的数组重排序

*/

System.out.println("该数据长度为" + arrInt.length + ",插入数据后也记录最后" + "个的元素");

boolean ref = true;

do {

System.out.println("请插入元素:");

for (int i = 0; i arrInt.length; i++) {

if (i arrInt.length - 1)

arrInt[i] = arrInt[i + 1];

else

arrInt[i] = input.nextInt();

}

System.out.println("是否再插入新的元素?(是:Y,否:其他任何字符)");

if (!input.next().equalsIgnoreCase("y")) {

ref = false;

}

} while (ref);

System.out.print("插入元素后的数组:");

for (int i = 0; i arrInt.length; i++) {

System.out.print(arrInt[i] + "\t");

}

System.out.println();

/**

*

* (5)实现对某个数组的删除或者修改操作

*/

System.out.println("请选择操作:1.删除;2.修改");

int d = input.nextInt();

System.out.println("请输入要操作的元素下标:(输入0-" + (arrInt.length - 1)

+ "之内的数字即可):");

int index = input.nextInt();

System.out.println(index);

int[] arrs = new int[arrInt.length - 1];

switch (d) {

case 1:

for (int i = 0; i arrInt.length - 1; i++) {

if (i == index index arrInt.length - 1) {

arrs[i] = arrInt[index + 1];

} else if (i index index arrInt.length - 1) {

arrs[i] = arrInt[i + 1];

} else {

arrs[i] = arrInt[i];

}

}

for (int i = 0; i arrs.length; i++) {

System.out.print(arrs[i] + "\t");

}

break;

case 2:

System.out.println("请输入新的元素:");

int num = input.nextInt();

arrInt[index] = num;

for (int i = 0; i arrInt.length; i++) {

System.out.print(arrInt[i] + "\t");

}

break;

default:

System.out.println("输入有误");

break;

}

}

Java课程设计源代码 家族亲属关系查询系统

public class Beetle extends Insect {

private int k = printInit("Beetle.k initialized");

public Beetle(){

System.out.println("k = " +k);

System.out.println("j = " + j);

}

private static int x2 = printInit("static Beetle.x2 initialized");

public static void main(String[] args){

System.out.println("Beetle constructor");

Beetle b = new Beetle();

}

}


文章标题:java基础课程设计代码 java程序设计课程设计
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