Java调用外部程序
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
public class CmdTest {
private static final long serialVersionUID = -2650474785662737262L;
public static void main(String[] args) throws Exception {
Runtime runtime = Runtime.getRuntime();
Process p = runtime.exec("c:\\test.bat");
DealStream errStream = new DealStream(p.getErrorStream(),"Err");
DealStream outStream = new DealStream(p.getInputStream(),"Out");
new Thread(errStream).start();
new Thread(outStream).start();
int exitValue = p.waitFor();
System.out.println("exitValue -- > " + exitValue);
}
}
class DealStream implements Runnable{
private InputStream is;
private String type;
public DealStream(InputStream is,String type){
this.is = is;
this.type = type;
}
public void run(){
try{
InputStreamReader isr = new InputStreamReader(is);
BufferedReader br = new BufferedReader(isr);
String temp = null;
while((temp = br.readLine()) != null){
System.out.println(type + "-->" + temp
相关文档：
1.写一个冒泡排序的程序。
public class Sort
{
public static void main(String[] args)
{
&n ......
1.使用java.util.Properties类的load()方法
示例：
Java代码
InputStream in = lnew BufferedInputStream(new FileInputStream(name));
Properties p = new Properties();
p.load(in);
InputStream ......
今天看到一道题目，是这样的：（我在里面打印了一些语句，先注释掉了）
class Singleton {
private static Singleton obj= new Singleton();
public static int counter1;
public static int counter2 = 2;
private Singleton() {
counter1++;
counter2++;
// System.out.println("Singleton counter1:" ......
对于静态变量、静态初始化块、变量、初始化块、构造器，它们的初始化顺序以此是（静态变量、静态初始化块）>（变量、初始化块）>构造器。我们也可以通过下面的测试代码来验证这一点：
public class InitialOrderTest {
//静态变量
&nbs ......
