单项选择题X 纠错
A.return super.hashCode();
B.return name.hashCode() + age * 7;
C.return name.hashCode() + comment.hashCode() / 2;
D.return name.hashCode() + comment.hashCode() / 2 - age * 3;
你可能喜欢
单项选择题
A.The set variable contains all six elements from the coll collection, and the order is guaranteed to be preserved.
B.The set variable contains only three elements from the coll collection, and the order is guaranteed to be preserved.
C.The set variable contains all six elements from the coll collection, but the order is NOT guaranteed to be preserved.
D.The set variable contains only three elements from the coll collection, but the order is NOT guaranteed to be preserved.
多项选择题
A.insert a call to this() in the Car constructor
B.insert a call to this() in the MeGo constructor
C.insert a call to super() in the MeGo constructor
D.insert a call to super(vin) in the MeGo constructor
E.change the wheelCount variable in Car to protected
单项选择题
A.Compilation fails.
B.Cannot add Toppings
C.The code runs with no output.
D.A NullPointerException is thrown in Line 4.
单项选择题
A.Tight coupling
B.Low cohesion
C.High cohesion
D.Loose coupling
E.Weak encapsulation
F.Strong encapsulation
多项选择题
A.super(name, baseSalary);
B.this.commission = commission;
C.super(); this.commission = commission;
D.this.commission = commission; super();
E.super(name, baseSalary); this.commission = commission;
多项选择题
A.x.a2();
B.z.a2();
C.z.c1();
D.z.a1();
E.y.c1();
F.x.a1();
单项选择题
A.peep
B.bark
C.meow
D.Compilation fails.
E.An exception is thrown at runtime.
单项选择题
A.Line 4 of class Target can be changed to return i++;
B.Line 2 of class Target can be changed to private int i = 1;
C.Line 3 of class Target can be changed to private int addOne(){
D.Line 2 of class Target can be changed to private Integer i = 0;
单项选择题
A.assert value == null;
B.assert value != null, "value is null";
C.if (value == null) { throw new AssertionException("value is null"); }
D.if (value == null) { throw new IllegalArgumentException("value is null"); }
单项选择题
A.Tight coupling
B.Low cohesion
C.High cohesion
D.Loose coupling
E.Weak encapsulation