下面程序段; boolean a=false; boolean b=true; boolean c=(a||b)(b); boolean result=(a|b)(b); 执行完后,正确的结果是A.c=false;result=falseB.c=true;result=trueC.c=true;result=falseD.c=false;result=true
下面程序段; boolean a=false; boolean b=true; boolean c=(a||b)&&(b); boolean result=(a|b)&(b); 执行完后,正确的结果是
A.c=false;result=false
B.c=true;result=true
C.c=true;result=false
D.c=false;result=true
相关考题:
以上程序段运行的结果是:______. Dim a(-1 To 5) As Boolean Dim flag As Boolean flag = False Dim i As Integer Dim j As Integer Do Until flag = True For i = -1 To 5 j=j+1 if a(i)= False Then a(i)= True Exit For End If If i = 5 Then flag = True End If Next Loop Print jA.20B.7C.35D.8
( 12 )下列布尔变量定义中,正确并且规范的是A )BOOLEAN canceled = false;B)boolean canceled = false;C)boolean CANCELED = false;D)boolean canceled = FALSE;
boolean a=false;boolean b=true;boolean c=(ab)(!b);boolean result=(ab)(!b); boolean result=(ab)(!b); 执行完后,正确的结果是( )。A.c=false;result=falseB.c=true,result=trueC.c=true;result=falseD.c=false;result=true
下面程序段: boolean a=false; boolean b=true; boolean c=(a||b)(b); boolean result=(a|b)(b); 执行完后,正确的结果是A.c=false;result=falseB.c=true,result=trueC.c=true;result=falseD.c=false;result=true
下列布尔变量定义中,正确并且规范的是A.BOOLEAN canceled=false;B.boolean canceled=false;C.boolean CANCELED=false;D.boolean canceled=FALSE;
下面程序段: boolean a=false; boolean b=true; boolean c=(aB) (!B) ; boolean result=(aB) (!B) ; 执行完后,正确的结果是( )。A.c=false;result=falseB.c=true,result=trueC.c=tree;result=falseD.c=false;result=trae
下面程序段:boolean a=false;boolean b=true;boolean c=(ab)(!b);boolean result=(ab)(!b);执行完后,正确的结果是A.c=false;result=falseB.c=true,result=trueC.c=true;result=falseD.c=false;result=true
下面均为Java关键字的一组是()A、boolean,byte,long,trueB、byte, long,true,gotoC、goto ,Boolean,byte,trueD、bool, long,true,auto
当执行下面代码时,会输出( )。 Boolean b1 = new Boolean(true); Boolean b2 = new Boolean(true); if (b1 == b2) if (bi.equals(b2)) System. out.printin ("a"); else System. out. println ("b"); else if (bi.equals(b2)) System. out.println ("c"); else System. out.printIn("d");A.aB.bC.cD.d
public void foo( boolean a, boolean b ){ if( a ) { System.out.println( “A” ); } else if ( a b ) { System.out.println( “AB” ); } else { 17. if ( !b ) { System.out.println( “notB” ); } else { System.out.println( “ELSE” ); } } } What is correct?() A、 If a is true and b is true then the output is “AB”.B、 If a is true and b is false then the output is “notB”.C、 If a is false and b is true then the output is “ELSE”.D、 If a is false and b is false then the output is “ELSE”.
下面均为java关键字的一组是()A、boolean ,byte,long,assertB、byte,long,true,gotoC、goto,boolean,byte,nullD、boolean,long,false,auto
A JavaBeans component has the following field: 11. private boolean enabled; Which two pairs of method declarations follow the JavaBeans standard for accessing this field?()A、 public void setEnabled( boolean enabled) public boolean getEnabled()B、 public void setEnabled( boolean enabled) public void isEnabled()C、 public void setEnabled( boolean enabled) public boolean isEnabled()D、 public boolean setEnabled( boolean enabled) public boolean getEnabled()
()导致PL/SQL中WHILE循环结束。A、控制传递给EXIT语句B、Boolean变量或表达式值为NULLC、Boolean变量或表达式值为TRUED、Boolean变量或表达式值为FALSE
将有三个boolean值的数组初始化为true的是()A、boolean[]b=newboolean[3]B、"boolean[]b={true,true,true}"C、"boolean[3]b={true,true,true}"D、"boolean[]b=newboolean[3];b={true,true,true}"
Which determines if “prefs” is a directory and exists on the file system?() A、 Boolean exists=Directory.exists (“prefs”);B、 Boolean exists=(new File(“prefs”)).isDir();C、 Boolean exists=(new Directory(“prefs”)).exists();D、 Boolean exists=(new File(“prefs”)).isDirectory();E、 Boolean exists=true; Try{ Directory d = new Directory(“prefs”); } catch (FileNotFoundException e) { exists = false; }
int index = 1; boolean test = new Boolean; boolean foo= test [index]; What is the result?()A、 Foo has the value of 0.B、 Foo has the value of null.C、 Foo has the value of true.D、 Foo has the value of false.E、 An exception is thrown.F、 The code will not compile.
class Test4 { public static void main(String [] args) { boolean x = true; boolean y = false; short z = 42; if((z++ = = 42) (y = true)) z++; if((x = false) || (++z = = 45)) z++; System.out.println("z = " + z); } } 结果为:() A、z = 42B、z = 44C、z = 45D、z = 46
public void testIfA(){ if(testIfB("True")){ System.out.println("True"); }else{ System.out.println("Nottrue"); } } public Boolean testIfB(Stringstr){ return Boolean.valueOf(str); } What is the result when method testIfA is invoked?()A、TrueB、NottrueC、Anexceptionisthrownatruntime.D、Compilationfailsbecauseofanerroratline12.E、Compilationfailsbecauseofanerroratline19.
单选题int index = 1; boolean[] test = new Boolean[3]; boolean foo= test [index]; What is the result?()A Foo has the value of 0.B Foo has the value of null.C Foo has the value of true.D Foo has the value of false.E An exception is thrown.F The code will not compile.
单选题public void foo( boolean a, boolean b ){ if( a ) { System.out.println( “A” ); } else if ( a b ) { System.out.println( “AB” ); } else { 17. if ( !b ) { System.out.println( “notB” ); } else { System.out.println( “ELSE” ); } } } What is correct?()A If a is true and b is true then the output is “AB”.B If a is true and b is false then the output is “notB”.C If a is false and b is true then the output is “ELSE”.D If a is false and b is false then the output is “ELSE”.
单选题int index = 1; boolean test = new Boolean; boolean foo= test [index]; What is the result?()A Foo has the value of 0.B Foo has the value of null.C Foo has the value of true.D Foo has the value of false.E An exception is thrown.F The code will not compile.
单选题Which determines if “prefs” is a directory and exists on the file system?()A Boolean exists=Directory.exists (“prefs”);B Boolean exists=(new File(“prefs”)).isDir();C Boolean exists=(new Directory(“prefs”)).exists();D Boolean exists=(new File(“prefs”)).isDirectory();E Boolean exists=true; Try{ Directory d = new Directory(“prefs”); } catch (FileNotFoundException e) { exists = false; }
多选题A JavaBeans component has the following field: 11. private boolean enabled; Which two pairs of method declarations follow the JavaBeans standard for accessing this field?()Apublic void setEnabled( boolean enabled) public boolean getEnabled()Bpublic void setEnabled( boolean enabled) public void isEnabled()Cpublic void setEnabled( boolean enabled) public boolean isEnabled()Dpublic boolean setEnabled( boolean enabled) public boolean getEnabled()
单选题public void testIfA(){ if(testIfB("True")){ System.out.println("True"); }else{ System.out.println("Nottrue"); } } public Boolean testIfB(Stringstr){ return Boolean.valueOf(str); } What is the result when method testIfA is invoked?()ATrueBNottrueCAnexceptionisthrownatruntime.DCompilationfailsbecauseofanerroratline12.ECompilationfailsbecauseofanerroratline19.
判断题boolean数据类型的数据只有true和false两个值。()A对B错