int n = 10;
for(int i=0;i<n;i++){
System.out.println(n*n);//假设这行代码执行时间为1h,那么我整个程序执行下来就要10h
}
public class Tests extends Thread{
public static void main(String[] args) throws IOException {
int n = 10;
for(int i=0;i<n;i++) {
new Tests(i).start();//启动线程时间忽略不计 那么总共用时1h
}
}
private int n;
public Tests(int n) {
this.n = n;
}
@Override
public void run() {
System.out.println(n*n);
}
}
int n = 10;
for(int i=0;i<n;i++){
System.out.println(n*n);//假设这行代码执行时间为1h,那么我整个程序执行下来就要10h
}
public class Tests extends Thread{
public static void main(String[] args) throws IOException {
int n = 10;
for(int i=0;i<n;i++) {
new Tests(i).start();//启动线程时间忽略不计 那么总共用时1h
}
}
private int n;
public Tests(int n) {
this.n = n;
}
@Override
public void run() {
System.out.println(n*n);
}