如果某子程序add用public static sub add定义,则该子程序的变量都是局部变量。
如果某子程序add用public static sub add定义,则该子程序的变量都是局部变量。
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下面的子程序是将AL寄存器低于4位中的十六进制转换为ASCII码,试问:该子程序中的横线处应该填写什么指令? HTOASE PROC AND AL,0FH ADD AL,30H CMP AL,39H JBE DONE -------- DONE: RET HTOASC ENDPA.SUB AL,‘A’-0AH B.ADD AL,‘A’-0AHC.SUB AL,07HD.ADD AL,07H
下面的子程序是将AL寄存器低4位中的十六进制数转换为ASCII码,试问:该子程序中的横线处应填写什么指令? HTOASC PROC AND AL, OFH ADD AL, 30H CMP AL, 39H JBE DONE ____________ DONE: RET HTOASC ENDPA.SUB AL,'A'-0AHB.ADD AL,'A'-0AHC.SUB AL,'A'-07HD.ADD AL,'A'-07H
下列Application程序中,指定as为字符串数组类型,先创建一个HashSet对象并赋值,然后在屏幕输出s,请将程序补充完整。import java.util.*;public class test17_1{public static void main(String[] args){__________s=new HashSet();s.add("Hello");s.add("World");s.add(new Character('我'));s.add(new Integer(23));s.add("Hello");__________as={"W","o","r","1","d"};s.add(as);s.add(null);s.add(new Integer(23));s.add(null);System.out.println(__________);
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)
在窗体中添加一个名称为Cmd的命令按钮,然后编写如下程序: Public x As integer Private Sub Cmd_Click() x=10 Call add1 Call add2 MsgBox x End Sub Private Sub add1 ( ) x=x+20 End Sub Private Sub add2 ( ) Dim x As integer x=x+40 End Snb 窗体打开运行后,单击命令按钮,则消息框的输出结果为( )。A.10B.60C.30D.70
下面程序段的输出结果是 class Base { int i; Base() { add(1); } void add(int v) { i+=v; } void print() { System.out.println(i); } } class Extension extends Base { Extension() { add(2); } void add(int v) { i+=v*2; } } public class Test { public static void main(String args[]) { bogo(new Extension()); } static void bogo(Baseb){ b.add(8); b.print(); } }A.9B.18C.20D.22
如下程序是为变量i赋值。若程序的输出结果是180。请将程序补充完整。注意:不改动程序结构,不得增行或删行。class Base{int i;Base(){add(10);}void add(int v){i+=v;}void print(){System.out.println(i);}}class Extension extends Base{Extension(){add(______);}void add(int v){i+=v*2;}}public class ConstructTest3{public static void main(String args[]){bogo(new Extension());}static void bogo(Base b){b.add(60);b.print();}}
本题利用递归方法求前n个自然数的和(n=lO)。 public class javal{ public static void main(String[]args){ int sum=add(10): System.out.println("1+2+…+9+10="+ sum); } public static int add( ){ if(n= =l){ ; } else ; } }
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)
本题定义了一个方法add(),用于求两个整形数的和。方法中有两个整形参数a和b,方法体中计算a和b的和sum,并将结果返回。程序中调用add()方法求整数24和34的和,并将结果打印输出。public class javal{public static void main(String[]args){int a=24,b=34;System.out.println(add(a,b));}public static int add( ){;sum—a+b;;}}
下列哪些是方法public int add (int a)的重载方法?() A、 public int add (long a);B、 public void add (int a);C、 public void add (long a);D、 public int add (float a);
指出下列方法与方法publicvoidadd(inta){}中为合理的重载方法的是()。A、public int add(inta)B、public void add(longa)C、public void add(inta,intb)D、public void add(floata)
public class test { public static void add3 (Integer i) int val = i.intValue ( ); val += 3; i = new Integer (val); } public static void main (String args [ ] ) { Integer i = new Integer (0); add3 (i); system.out.printIn (i.intValue ( ) ); } What is the result?() A、 Compilation will fail.B、 The program prints “0”.C、 The program prints “3”.D、 Compilation will succeed but an exception will be thrown at line 3.
public static void search(List list) { list.clear(); list.add(”b”); list.add(”a”); list.add(”c”); System.out.println(Collections.binarySearch(list, “a”)); } What is the result of calling search with a valid List implementation?()A、0B、1C、aD、bE、cF、The result is undefined.
import java.util.*; public class PQ { public static void main(String[] args) { PriorityQueue pq = new PriorityQueue(); pq.add(”carrot”); pq.add(”apple”); pq.add(”banana”); System.out.println(pq.poll() +”:” + pq.peek()); } } What is the result?() A、 apple:appleB、 carrot:appleC、 apple:bananaD、 banana:appleE、 carrot:carrotF、 carrot:banana
下列方法中,与方法public void add(inta){}为合理重载的方法是()。A、public int add(int a)B、public void add(long a)C、public void add(int a)D、public void add(int a,int b)
现有: import java.util.*; class AddStuff2 { public static void main(String [] args) { TreeSett=new TreeSet(); if (t.add("one")) if (t.add("two")) if (t.add ("three")) add("four"); for (String s : t) System.out.print (s); } } 结果为:() A、 oneB、 one three twoC、 one two threeD、 one two three fourE、 four one three twoF、编译失败
public static Iterator reverse(List list) { Collections.reverse(list); return list.iterator(); } public static void main(String[] args) { List list = new ArrayList(); list.add(” 1”); list.add(”2”); list.add(”3”); for (Object obj: reverse(list)) System.out.print(obj + “,”); } What is the result?() A、 3,2,1,B、 1,2,3,C、 Compilation fails.D、 The code runs with no output.E、 An exception is thrown at runtime.
单选题public static Iterator reverse(List list) { Collections.reverse(list); return list.iterator(); } public static void main(String[] args) { List list = new ArrayList(); list.add(” 1”); list.add(”2”); list.add(”3”); for (Object obj: reverse(list)) System.out.print(obj + “,”); } What is the result?()A 3,2,1,B 1,2,3,C Compilation fails.D The code runs with no output.E An exception is thrown at runtime.
单选题import java.util.*; public class PQ { public static void main(String[] args) { PriorityQueue pq = new PriorityQueue(); pq.add(”carrot”); pq.add(”apple”); pq.add(”banana”); System.out.println(pq.poll() +”:” + pq.peek()); } } What is the result?()A apple:appleB carrot:appleC apple:bananaD banana:appleE carrot:carrotF carrot:banana
单选题public class Test { public static void add3 (Integer i) { int val = i.intValue(); val += 3; i = new Integer(val); } public static void main(String args[]) { Integer i = new Integer(0); add3(i); System.out.println(i.intValue()); } } What is the result? ()A 0B 3C Compilation fails.D An exception is thrown at runtime.
单选题四则运算指令包括加法指令是(),减法指令是(),乘法指令是(),除法指令是()。AADD/SUB/MOT/DIVBSUB/ADD/MOT/DIVCMVL/ADD/SUB/DIVDDIV/ADD/SUB/MVL
单选题What will be written to the standard output when the following program is run?() class Base { int i; Base() { add(1); } void add(int v) { i += v; } void print() { System.out.println(i); } } class Extension extends Base { Extension() { add(2); } void add(int v) { i += v*2; } } public class Qd073 { public static void main(String args[]) { bogo(new Extension()); } static void bogo(Base b) { b.add(8); b.print(); } }A9B18C20D21E22
单选题import java.util.*; public class LetterASort { public static void main(String[] args) { ArrayList strings = new ArrayList(); strings.add(‟aAaA”); strings.add(”AaA”); strings.add(‟aAa”); strings.add(”AAaa”); Collections.sort(strings); for (String s: strings) { System.out.print(s + “ “); } } } What is the result?()A Compilation fails.B aAaA aAa AAaa AaAC AAaa AaA aAa aAaAD AaA AAaa aAaA aAaE aAa AaA aAaA AAaaF An exception is thrown at runtime.
单选题现有 public class Demo{ public static void main (String[] args){ List al=new ArrayList(); a1.add("l"); a1.add("2"); a1.add("2"); a1.add("3"); System.out.println (al); } } 上述程序执行后的输出是哪项?()A [1,2,3]B [1,2,3,3]C [1,2,2,3]D [2,1,3,2]
单选题public class Demo{ public static void main(String[] args){ List al = new ArrayList(); al.add(“1”); al.add(“2”); al.add(“2”); al.add(“3”); System.out.println(al); } } 上述程序执行后的输出是哪项?()A [1,2,3]B [1,2,2,3]C [1,2,3,3]D [2,1,3,2]