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TestLock.java
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127 lines (103 loc) · 2.96 KB
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package collections;
import java.util.HashMap;
/**
* Created by jiangyunxiong on 2018/7/26.
*/
public class TestLock {
private HashMap map = new HashMap();
public TestLock() {
Thread t1 = new Thread() {
public void run() {
for (int i = 0; i < 50000; i++) {
map.put(new Integer(i), i);
}
System.out.println("t1 over");
}
};
Thread t2 = new Thread() {
public void run() {
for (int i = 0; i < 50000; i++) {
map.put(new Integer(i), i);
}
System.out.println("t2 over");
}
};
Thread t3 = new Thread() {
public void run() {
for (int i = 0; i < 50000; i++) {
map.put(new Integer(i), i);
}
System.out.println("t3 over");
}
};
Thread t4 = new Thread() {
public void run() {
for (int i = 0; i < 50000; i++) {
map.put(new Integer(i), i);
}
System.out.println("t4 over");
}
};
Thread t5 = new Thread() {
public void run() {
for (int i = 0; i < 50000; i++) {
map.put(new Integer(i), i);
}
System.out.println("t5 over");
}
};
Thread t6 = new Thread() {
public void run() {
for (int i = 0; i < 50000; i++) {
map.get(new Integer(i));
}
System.out.println("t6 over");
}
};
Thread t7 = new Thread() {
public void run() {
for (int i = 0; i < 50000; i++) {
map.get(new Integer(i));
}
System.out.println("t7 over");
}
};
Thread t8 = new Thread() {
public void run() {
for (int i = 0; i < 50000; i++) {
map.get(new Integer(i));
}
System.out.println("t8 over");
}
};
Thread t9 = new Thread() {
public void run() {
for (int i = 0; i < 50000; i++) {
map.get(new Integer(i));
}
System.out.println("t9 over");
}
};
Thread t10 = new Thread() {
public void run() {
for (int i = 0; i < 50000; i++) {
map.get(new Integer(i));
}
System.out.println("t10 over");
}
};
t1.start();
t2.start();
t3.start();
t4.start();
t5.start();
t6.start();
t7.start();
t8.start();
t9.start();
t10.start();
}
public static void main(String[] args) {
new TestLock();
}
}