
1编辑源程序,编译为字节码,解释执行字节码(编辑、编译、执行)
2源程序的文件名,javaappletApplet,MyApplet
3javac MyJavaApplicationjava,java MyJavaApplication
42 2
5false
633 66 99
7private static double additoryFee = 01;
8定义,调用
9String,StringBuffer
10Label gxdd = new Label("广西广播电视大学");
Button gb = new Button("关闭");
11class,interface
12套接字,IP地址,接口
130 31
14类名
15父类
仅供参考,未测试
Question1
package comkiddatmtest;import javautilScanner;
public class Question1 {
public static void main(String[] args) {
Scanner scanner = new Scanner(Systemin);
Systemoutprint("输入基本运费,货重,距离(均为整数,用,分割):");
String[] ss = scannernext()split(",");
int p = IntegerparseInt(ss[0]);
int w = IntegerparseInt(ss[1]);
int s = IntegerparseInt(ss[2]);
double d ;
if(s < 250){
d=0 ;
}else if(s < 500){
d=002;
}else if(s < 1000){
d=005;
}else if(s < 2000){
d=008 ;
}else{
d=01;
}
Systemoutprintln("总运费f="+(pws(1-d)));
}
}
Question2
package comkiddatmtest;import javautilScanner;
public class Question2 {
public static void main(String[] args) {
Scanner scanner = new Scanner(Systemin);
Systemoutprint("请输入x:");
int x = scannernextInt();
int y ;
if(x<0){
y=-1;
}else if (x >0){
y=1;
}else{
y=0;
}
Systemoutprintln("y="+y);
}
}
Question3
package comkiddatmtest;import javautilScanner;
public class Question3 {
public static void main(String[] args) {
int index = 0;
Scanner scanner = new Scanner(Systemin);
boolean end = false;
while (!end) {
Systemoutprint("请输入卡号,密码:");
scannernext();
index++;
Systemoutprint("账号或密码错误次数" + index + ",");
if (index >= 3) {
Systemoutprintln("吞卡");
end = true;
} else {
Systemoutprintln("请重新输入");
}
}
}
}
Question4
package comkiddatmtest;import javautilScanner;
public class Question4 {
public static void main(String[] args) {
Scanner scanner = new Scanner(Systemin);
Systemoutprint("输入一个整数:");
String string = scannernext();
for (int i = 0, k = stringlength(); i < k; i++) {
Systemoutprintln(stringcharAt(i));
}
}
}
Question5
package comkiddatmtest;import javautilRandom;
import javautilScanner;
public class Question5 {
public static void main(String[] args) {
int i = new Random()nextInt(40) + 60;
boolean end = false;
int n;
int index = 1;
Scanner scanner = new Scanner(Systemin);
while (!end) {
Systemoutprint("请输入你猜的结果:");
n = scannernextInt();
if (n > i) {
Systemoutprintln("大了");
index++;
} else if (n < i) {
Systemoutprintln("小了");
index++;
} else {
end = true;
}
}
Systemoutprint("猜对了,一共猜了" + index + "次,你是");
if (index < 5) {
Systemoutprint("天才");
} else {
Systemoutprint("笨蛋");
}
}
}
Question6
package comkiddatmtest;import javautilScanner;
public class Question6 {
public static void main(String[] args) {
Scanner scanner = new Scanner(Systemin);
Systemoutprint("请输入要打印的元素个数:");
int n = scannernextInt();
if (n < 1) {
Systemoutprintln("无输出结果");
}
if (n >= 1) {
Systemoutprint("1");
}
if (n >= 2) {
Systemoutprint(",2");
}
if (n > 2) {
int f1 = 1;
int f2 = 2;
int sum;
for (int i = 3; i <= n; i++) {
sum = f1 + f2;
Systemoutprint("," + (f1 + f2));
f1 = f2;
f2 = sum;
}
}
}
}
java
解释
不执行
高级
main
声明
String
顺序、选择、循环
false
没有
90
true
静态
局部变量
IntegerparseInt()
5
break、continue、return
randomnextInt(100)
定义一个数组的引用、对数组进行初使化、数组越界
封装、继承、多态
path、classpath
可以
10
0
continue
boolean
randnextInt(5)
double
没有
顺序、选择、循环
Systemoutprintln(m+1)
x定义了但没有赋值、语法
单行、多行
10
数组的引用
float
y=IntegerparseInt(x)
一个
public
public static int a()
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