一个简单的Java程序代码？
package com.zpp;public class Charge {
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public static void main(String [] args) {
if(args.length ==0) {
System.out.println("parameter error!");
System.out.println("java com.zpp.Charge [int]");
return;
}
int min = Integer.parseInt(args[0]);
double money = 0.0;
if (min = 0) {
money =0.0;
System.out.println("not money");
} else if (min = 60) {
money = 2.0;
} else {
money = 2.0 + (min - 60) * 0.01;
}
System.out.println("please pay: " + money);
}
} 编译：javac -d . Charge.java运行：java com.zpp.Charge 111
Java编程（写出程序代码）
import java.util.Scanner;
/*输入一个成绩，将该成绩转换为A、B、C、D和E：成绩在90分以上，结果为A，成绩在80-90之间，结果为B，成绩在70-80之间，结果为C，成绩在60-70之间，结果为D，成绩在60分以下，结果为E。*/
public class Chengfabiao
{
public static void main (String[] args)
{
Scanner scanner = new Scanner(System.in);
int score = scanner.nextInt();
if(score90)
{
System.out.println("A");
}
else if(score=80)
{
System.out.println("B");
}
else if(score=70)
{
System.out.println("C");
}
else if(score=60)
{
System.out.println("D");
}
else
{
System.out.println("E");
}
}
}
用java编写一个简单例子，题目如下
package test;
public class Student {
private String name;
private String id;
private String clazz;
private int age;
private String address;
/**
* sayHello方法
*/
public void sayHello() {
System.out.println("学号为" + this.id + "的同学的具体信息如下：");
System.out.println("姓名：" + this.name);
System.out.println("班级：" + this.clazz);
System.out.println("年龄：" + this.age);
System.out.println("家庭住址：" + this.address);
}
/**
* 测试方法
*
* @param args
*/
public static void main(String[] args) {
// 第一问
Student student = new Student();
student.setAddress("百度知道");
student.setAge(1);
student.setClazz("一班");
student.setId("071251000");
student.setName("lsy605604013");
student.sayHello();
// 第二问
Student studentNew = new Student();
studentNew.setAddress("搜搜知道");
studentNew.setAge(2);
studentNew.setClazz("二班");
studentNew.setId("071251001");
studentNew.setName("lady");
if (student.getAge() studentNew.getAge())
studentNew.sayHello();
else if (student.getAge() studentNew.getAge())
student.sayHello();
else
System.out.println("两人一样大");
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getClazz() {
return clazz;
}
public void setClazz(String clazz) {
this.clazz = clazz;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
}
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