程序代码java,爱心程序代码Java
用JAVA编写一个程序，要求如下：
实现代码如下：
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Student类：
public class Student {
private String name;
private String sex;
private int age;
private double chinese;
private double math;
private double english;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getSex() {
return sex;
}
public void setSex(String sex) {
this.sex = sex;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public double getChinese() {
return chinese;
}
public void setChinese(double chinese) {
this.chinese = chinese;
}
public double getMath() {
return math;
}
public void setMath(double math) {
this.math = math;
}
public double getEnglish() {
return english;
}
public void setEnglish(double english) {
this.english = english;
}
}
-----------------------------------------------------------------
StudentTest类：（测试类）
import java.util.Scanner;
public class StudentTest {
public static void main(String[] args) {
Student student = new Student();
Scanner sc = new Scanner(System.in);
System.out.println("请输入姓名：");
student.setName(sc.next());
System.out.println("请输入性别：");
student.setSex(sc.next());
System.out.println("请输入年龄：");
student.setAge(sc.nextInt());
System.out.println("请输入语文成绩、数学成绩、英语成绩：");
student.setChinese(sc.nextDouble());
student.setMath(sc.nextDouble());
student.setEnglish(sc.nextDouble());
Double count = student.getChinese()+ student.getMath()+student.getEnglish();
System.out.println("姓名："+student.getName()+" 性别："+student.getSex()+" 年龄："+student.getAge());
System.out.println("总分："+count+" 平均分："+count/3);
}
}
运行结果为：
Java程序代码
import java.awt.*;//计算器实例
import java.awt.event.*;
public class calculator
{
public static void main(String args[])
{
MyWindow my=new MyWindow("计算器");
}
}
class MyWindow extends Frame implements ActionListener
{ StringBuffer m=new StringBuffer();
int p;
TextField tex;
Button b0,b1,b2,b3,b4,b5,b6,b7,b8,b9,jia,jian,cheng,chu,deng,dian,qingling,kaifang;
MyWindow(String s)
{
super(s);
//StringBuffer s2=new StringBuffer();
//String s;
tex=new TextField(18);
b0=new Button(" 0 ");
b1=new Button(" 1 ");
b2=new Button(" 2 ");
b3=new Button(" 3 ");
b4=new Button(" 4 ");
b5=new Button(" 5 ");
b6=new Button(" 6 ");
b7=new Button(" 7 ");
b8=new Button(" 8 ");
b9=new Button(" 9 ");
dian=new Button(" . ");
jia=new Button(" + ");
jian=new Button(" - ");
cheng=new Button(" × ");
chu=new Button(" / ");
deng=new Button(" = ");
qingling=new Button(" 清零 ");
kaifang=new Button(" √ ");
setLayout(new FlowLayout());
add(tex);
add(b0);
add(b1);
add(b2);
add(b3);
add(b4);
add(b5);
add(b6);
add(b7);
add(b8);
add(b9);
add(dian);
add(jia);
add(jian);
add(cheng);
add(chu);
add(kaifang);
add(qingling);
add(deng);
b0.addActionListener(this);
b1.addActionListener(this);
b2.addActionListener(this);
b3.addActionListener(this);
b4.addActionListener(this);
b5.addActionListener(this);
b6.addActionListener(this);
b7.addActionListener(this);
b8.addActionListener(this);
b9.addActionListener(this);
jia.addActionListener(this);
jian.addActionListener(this);
cheng.addActionListener(this);
chu.addActionListener(this);
dian.addActionListener(this);
deng.addActionListener(this);
qingling.addActionListener(this);
kaifang.addActionListener(this);
setBounds(200,200,160,280);
setResizable(false);//不可改变大小
setVisible(true);
validate();
addWindowListener(new WindowAdapter()
{ public void windowClosing(WindowEvent ee)
{ System.exit(0);
}
});
}
public void actionPerformed(ActionEvent e)
{
if(e.getSource()==b0)
{
m=m.append("0");
tex.setText(String.valueOf(m));
}
if(e.getSource()==b1)
{
m=m.append("1"); tex.setText(String.valueOf(m));
}
if(e.getSource()==b2)
{
m=m.append("2"); tex.setText(String.valueOf(m));
}
if(e.getSource()==b3)
{
m=m.append("3"); tex.setText(String.valueOf(m));
}
if(e.getSource()==b4)
{
m=m.append("4"); tex.setText(String.valueOf(m));
}
if(e.getSource()==b5)
{
m=m.append("5"); tex.setText(String.valueOf(m));
}
if(e.getSource()==b6)
{
m=m.append("6"); tex.setText(String.valueOf(m));
}
if(e.getSource()==b7)
{
m=m.append("7"); tex.setText(String.valueOf(m));
}
if(e.getSource()==b8)
{
m=m.append("8"); tex.setText(String.valueOf(m));
}
if(e.getSource()==b9)
{
m=m.append("9"); tex.setText(String.valueOf(m));
}
if(e.getSource()==jia)
{
m=m.append("+"); tex.setText(String.valueOf(m));
}
if(e.getSource()==jian)
{
m=m.append("-"); tex.setText(String.valueOf(m));
}
if(e.getSource()==cheng)
{
m=m.append("*"); tex.setText(String.valueOf(m));
}
if(e.getSource()==chu)
{
m=m.append("/"); tex.setText(String.valueOf(m));
}
if(e.getSource()==dian)
{
m=m.append("."); tex.setText(String.valueOf(m));
}
String mm=String.valueOf(m);
int p1=mm.indexOf("+");
int p2=mm.indexOf("-");
int p3=mm.indexOf("*");
int p4=mm.indexOf("/");
if(p1!=-1)
{
p=p1;
}
else if(p3!=-1)
{
p=p3;
}
else if(p2!=-1)
{
p=p2;
}
else if(p4!=-1)
{
p=p4;
}
if(e.getSource()==deng)
{
String m1=mm.substring(0,p);
String m2=mm.substring(p+1);
String ch=mm.substring(p,p+1);
//System.out.println(m1);
//System.out.println(m2);
//System.out.println(ch);
if(ch.equals("+"))
{
float n1=Float.parseFloat(m1);
float n2=Float.parseFloat(m2);
float sum=n1+n2;
String su=String.valueOf(sum);
tex.setText(su);
}
if(ch.equals("-"))
{
float n1=Float.parseFloat(m1);
float n2=Float.parseFloat(m2);
float sum=n1-n2;
String su=String.valueOf(sum);
tex.setText(su);
}
if(ch.equals("*"))
{
float n1=Float.parseFloat(m1);
float n2=Float.parseFloat(m2);
float sum=n1*n2;
String su=String.valueOf(sum);
tex.setText(su);
}
if(ch.equals("/"))
{
float n1=Float.parseFloat(m1);
float n2=Float.parseFloat(m2);
float sum=n1/n2;
String su=String.valueOf(sum);
tex.setText(su);
}
}
if(e.getSource()==qingling)
{StringBuffer kk=new StringBuffer();
m=kk;
tex.setText("0");
// System.out.println(mm);
}
if(e.getSource()==kaifang)
{
String t=tex.getText();
float num=Float.parseFloat(t);
double nub=Math.sqrt(num);
tex.setText(String.valueOf(nub));
}
}
}
Java求程序代码
按照你的要求编写的Java程序如下
import java.util.Scanner;
public class S{
public static void main(String[] args){
int n=5;
int[] a=new int[n];
System.out.print("请输入"+n+"个正整数:");
Scanner sc=new Scanner(System.in);
for(int i=0;in;i++){
a[i]=sc.nextInt();
}
System.out.print("其中的偶数为:");
for(int i=0;in;i++){
if(a[i]%2==0){
System.out.print(a[i]+" ");
}
}
}
}
新闻标题：程序代码java,爱心程序代码Java
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