指出下列哪个方法与方法public void add(int a){}为错误的重载方法()A、public int add(int
指出下列哪个方法与方法public void add(int a){}为错误的重载方法()
A、public int add(int a)
B、public void add(long a)
C、public int add(long a)
D、public void add(float a)
指出下列哪个方法与方法public void add(int a){}为错误的重载方法()
A、public int add(int a)
B、public void add(long a)
C、public int add(long a)
D、public void add(float a)
指出下列哪个方法与方法public void add(int a){}为合理的重载方法。()
A public int add(int a)
B public void add(long a)
C public void add(int a,int b)
D public void add(float a)
给出下列代码,如何使成员变量m被方法fun()直接访问?class Test { private int m; public static void fun() { ... }}
A.将 private int m 改为protected int m
B.将private int m 改为public int m
C.将private int m改为static int m
D.将private int m改为int m
A、public int Test(){…}
B、public void Test() {…}
C、public test() {…}
D、public Test(){…}
A.public void mouseMoved(MouseEvent)
B.public boolean mouseMoved(MouseEvent)
C.public void mouseMoved(MouseMotionEvent)
D.public boolean MouseMoved(MouseMotionEvent)
A、public void Person() {…}
B、public static void Person() {…}
C、public Person() {…}
D、public int Person() {…}
A、①
B、②
C、③
D、④
下列哪个方法可用于创建一个可运行的类? ()
A.public class X implements Runable {public void run(){...,.,}}
B.public class X implements Thread {public void run(){......}}
C.public class X implements Thread {public int run(){……}}
D.public class X implements Runable {protected void run(){.....}}
A、public Object get Source()
B、public Component get Source()
C、public class get Class()
D、public Component get Target()
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