java中this关键字用法
/**
* this关键字用法
*/
public class Flower {
int petalCount = 0;
String s = "initial value";
Flower(int petals){
petalCount = petals;
System.out.println("Constructor with one int arg");
}
Flower(String ss){
System.out.println("Constructor with one string arg");
s = ss;
}
Flower(String ss, int petals){
this(petals);
this.s = ss;
System.out.println("Constructor with string and int args");
}
Flower(){
this("hi",47);
System.out.println("Default Constructor with no args");
}
void printPetalCount(){
System.out.println("petalCount = "+petalCount+"; s = "+s);
}
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
Flower x = new Flower();
x.printPetalCount();
}
}
相关文档：
2009-11-11 18:06:09
/**
*
* @author Ice*
*/
public class RarUtil{
public static void main(String args[]) throws Exception {
String compress = "D:\\test.rar";// rar压缩文件
String decompression = "D:\\";// 解压路径
unZip(compress, decompression);
}
/** ......
JAVA相关基础知识
1、面向对象的特征有哪些方面
1.抽象：
抽象就是忽略一个主题中与当前目标无关的那些方面，以便更充分地注意与当前目标有关的方面。抽象并不打算了解全部问题，而只是选择其中的一部分，暂时不用部分细节。抽象包括两个方面，一是过程抽象，二是数据抽象。
2.继承：
继
承是一种联结类的层 ......
源代码：
import com.sap.mw.jco.*;
public class control extends Object
{
public static void main (String str[])
{
control control=new control();
}
int count;
JCO.Client mConnection;
JCO.Repository mRepository;
String[] SAPInterfaces;
public control()
{
try {
& ......
public class FindPrime {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
int num = 100;
String s = "100以内的素数：";
for (int i = 1; i <= num; i++) {
int count = 0;
for (int j = 1; j <= (int) Math.s ......
