Java语言程序设计基础篇第一章(原书第八版)
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Java语言程序设计基础篇第一章（原书第八版）关键术语 .class file(.class文件)
.java file(.java文件)
assembly langrage(汇编语言)
bit(比特)
block(块)
block comment(块注释)
bus(总线)
byte(字节)
bytecode(字节码)
bytecode verifier(字节码验证器) cable modem(电缆调制解调器) central processing unit(CPU，中央处理器) class loader(类加载器) commer(注释)
compiler(编译器)
console(控制台)
dot pitch(点距)
DSL (Digital Subscriber Line,数字用户线) hardware(硬件)
hard-level language(高级语言)
Integreted Development Environment(IDE,集成开发环境)
java command(java命令)
javac command(javac命令)
Java Development Tookit(JDK，java开发工具包) Java Virtual
Machine(JVM，java虚拟机) keyword or reserved word(关键字或保留字) line command(行注释)
machine language(机器语言)
main method(main方法)
memory(主存)
Network Interface Card(NIC，网络接口卡) Operation System(OS，操作系统) pixel(像素)
program(程序)
programming(程序设计)
resolution(分辨率)
software(软件)
source code(源代码)
source file(源文件)
specifica import(明确导入)
statement(语句)
storage device(存储设备)
wildcard import(通配符导入)
案例代码
1。
1
.
public class text
{
public static void main(String[] args)
{
//display measage welcome to Java to the console System.out.println("Welcome to Java!");//控制输出API
}
}
1.2
public class text
{
public static void main(String[] args)
{
//display measage welcome to Java to the console System.out.println("programming is fun!");//控制输出API System.out.println("Fundamentals First");//控制输出API System.out.println("Program Driven");//控制输出API
}
}
1.3
public class text13
{
public static void main(String[] args)
{
System.out.println("((10.5+2*3)/(45-3.5))");//控制输出API System.out.println(((10.5+2*3)/(45-3.5)));//控制输出API }
}
1.4
/*This application program display Welcome to Java～
* in a message dialog box.
*/
import javax.swing.JOptionPane; public class text
{
public static void main(String[] args)
{
//display Welcome to Java! in a message dialog box. JOptionPane.showMessageDialog(null, "Welcom to Java!"); }
}
编程练习题
1.1
public class text
{
public static void main(String[] args)
{
//display measage welcome to Java to the console System.out.println("programming is fun!");//控制输出API System.out.println("Fundamentals First");//控制输出API System.out.println("Program Driven");//控制输出API
}
}
1.2
import javax.swing.JOptionPane; public class text
{
public static void main(String[] args)
{
//显示1:很土的办法;
System.out.println("Welcom To Java!");//控制输出API System.out.println("Welcom To Java!");//控制输出API System.out.println("Welcom To Java!");//控制输出API System.out.println("Welcom To Java!");//控制输出API System.out.println("Welcom To Java!");//控制输出API
//显示2;
for( int i=0 ; i< 5 ; i=i+ 1 )//对于? ,从?循环到?
{
if ( i<5 )
{
System.out.println("第"+(i+1)+"个"+"Welcom To Java!");//控制输出API
}
}
}
}
1.3
import javax.swing.JOptionPane; public class text
{
public static void main(String[] args)
{
System.out.println(" "+"J");//控制输出API
System.out.println(" "+"J");//控制输出API
System.out.println("J "+"J");//控制输出API
System.out.println(" J J"+" ");//控制输出API
}
}
1.4
public class hao
{
static int a=0;
public static void main(String[] args)
{
System.out.println("a"+" "+"a^2"+" "+"a^3");//控制输出API for( int a= 0 ; a<= 4 ; a=a+ 1 )//对于? ,从?循环到?
{
System.out.println(a+" "+ a*a+" "+""+a*a*a );//控制输出API }
}
}
1.5
public class hao
{
public static void main(String[] args)
{
System.out.println("(9.5*4.5-2.5*3)/(45.5-3.5)");//控制输出API System.out.println((9.5*4.5-2.5*3)/(45.5-3.5));//控制输出API }
}
1.6
public class text
{ static int s=0;
public static void main(String[] args)
{
for( int i= 1 ; i<= 9 ; i=i+ 1 )//对于? ,从?循环到?
{
s=s+i;
}
System.out.println(s);//控制输出API
}
}。
