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public class Foo {
private int x = 100;
public int getX() {
return x;
}
public int fix(int y) {
x = x - y;
return x;
}
}
public class MyRunnable implements Runnable {
private Foo foo = new Foo();
public static void main(String[] args) {
MyRunnable r = new MyRunnable();
Thread ta = new Thread(r, "Thread-A");
Thread tb = new Thread(r, "Thread-B");
ta.start();
tb.start();
}
public void run() {
for (int i = 0; i < 3; i++) {
this.fix(30);
try {
Thread.sleep(1);
} catch (InterruptedException e) {
e.printStackTrace();
}
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import java.lang.reflect.InvocationTargetException;
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{
public static void main(String[] args){
//== ÓëequalsµÄÇø±ð
//1.nullµÄ±È½Ï£ºÖ»ÄÜÓÃ==
System.out.println("1.nullµÄ±È½Ï£ºÖ»ÄÜÓÃ==");
Object o1=null,o2=null;
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