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import java.util.HashMap;
import java.util.Map;
public class Test {
static final class Foo {
private String a, d, e;
private final String b, c;
public Foo(String b, String c) {
this.b = b;
this.c = c;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
Foo other = (Foo) obj;
if (b == null) {
if (other.b != null) {
return false;
}
} else if (!b.equals(other.b)) {
return false;
}
if (c == null) {
if (other.c != null) {
return false;
}
} else if (!c.equals(other.c)) {
return false;
}
return true;
}
public String getA() {
return a;
}
public String getD() {
return d;
}
public String getE() {
return e;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + (b == null ? 0 : b.hashCode());
result = prime * result + (c == null ? 0 : c.hashCode());
return result;
}
public void setA(String a) {
this.a = a;
}
public void setD(String d) {
this.d = d;
}
public void setE(String e) {
this.e = e;
}
}
public static void main(String[] args) {
Map<Foo, Object> map = new HashMap<Foo, Object>();
Foo f1 = new Foo("foo1", "foo1");
map.put(f1, "blabla");
Foo f2 = new Foo("foo2", "foo2");
map.put(f2, "blabla");
Foo f3 = new Foo("foo3", "foo3");
map.put(f3, "blabla");
Foo f4 = new Foo("foo4", "foo4");
map.put(f4, "blabla");
System.out.println(map.containsKey(new Foo("foo1", "foo1"))); // print true
}
} |
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