多选题下面哪段语法执行正确()AString s = Gone with the wind;String t =  good ;String k = s + t;BString s = Gone with the wind;String t; t = s[3] + one;CString s = Gone with the wind;String standard = s.toUpperCase();DString s = home directory;String t = s - directory;

多选题
下面哪段语法执行正确()
A

String s = Gone with the wind;String t =  good ;String k = s + t;

B

String s = Gone with the wind;String t; t = s[3] + one;

C

String s = Gone with the wind;String standard = s.toUpperCase();

D

String s = home directory;String t = s - directory;


参考解析

解析: 暂无解析

相关考题:

下面哪段语法执行正确() A.Strings=Gonewiththewind;Stringt=good;Stringk=s+t;B.Strings=Gonewiththewind;Stringt;t=s[3]+one;C.Strings=Gonewiththewind;Stringstandard=s.toUpperCase();D.Strings=homedirectory;Stringt=s-directory;

下面的哪些程序段可能导致错误? ( ) Ⅰ: String s = "Gone with the wind"; String t = "good "; String k = s + t; Ⅱ: String s = "Gone with the wind"; String t; t = s[3] + "one"; Ⅲ: String s = "Gone with the wind"; String standard = s.toUpperCase(); Ⅳ: String s = "home directory"; String t = s-"directory":A.Ⅱ、ⅢB.Ⅱ、ⅣC.Ⅰ、ⅣD.Ⅲ、Ⅳ

假设有以下代码: String s="hello"; String t="hello"; char c[ ]={'h','e','l','l','o'}; 下列选项中,返回false的语句是______。A.s.equals(t);B.t.equals(c);C.s==t;D.t.equals(new String("hello"));

给出下面的代码,则以下( )选项返回true。 String s="hello"; String t="hello"; Char c[]={'h','e','l','l','o'};A.s. equals (t) ;B.t. equals (C);C.s==t;D.t==c;

下面的程序执行后,屏幕上显示的应是 public class Exam{ public static void main(String[]args){ char char1[]={'t','e','s','t'}; char char2[]={'t','e','S','t','1'}; String s1=new String(char1); String s2=new String(char2,0,4); System.out.println(s1.equals(s2)); } }A.trueB.falseC.testD.编译错误

已知如下定义: String s = "story"; 下面哪些表达式是合法的?() A.s += "books";B.char c = s[1];C.int len = s.length;D.String t = s.toLowerCase();

String s=”Example String”; 下面哪些语句是正确的?() A.s>>>=3;B.int i=s.length();C.s[3]=”x”;D.String short_s=s.trim();E.String t=”root”+s;

下列的哪个程序段可能导致错误? ( )A.String s="hello"; String t="good"; String k=s+t;B.String s="hello"; String t; t=s[3]+"one";C.String s="hello"; String standard=s.toUpperCase();D.String s="hello"; String t=s+"good";

下列哪个程序段可能导致错误?A.String s="hello"; String t= "good"; String k=s+ t;B.String s="hello"; String t; t=s[3]+"one";C.String s="hello"; String standard=s. toUpperCaseD.String s="hello"; String t =s+ "good"

给出下列的代码,则以下哪个选项返回true? String s="hello"; String t="hello"; char c []= {'h','e','1','1','o'};A)s.equals(t);A.t. equals(B.;C.s==t;D.t==c;

下列程序执行后,屏幕上显示的应是 public class Testyyy {public static void main(String[]args) {char charl[]={,'t' 'e''s],'t'}; char char2[]={'t','e','s','t','1'}; String s1=new String(char1); String s2=new String(char2,0,4); System.out.println(s1.equals(s2)); } }A.trueB.假C.testD.编译错误

给出下列的代码则以下哪个选项返回true? String s = "hello" ; String s = "hello" ; char c[] = { 'h' ,'e','l','o'};A.s.equals(t);B.t.equals(c);C.s = =tD.t = = c;

下面的程序执行后,屏幕上显示的应是 public class Exam{ public static void main(String[]args){ char char1[]='t','e','s','t'}; char char2[]={'t','e','s','t','1',}; String sl=new String(char1); String s2=new String(char2,0,4); System.out.println(S1.equals(s2)); } }A.真B.假C.testD.编译错误

下列的( )程序段可能导致错误。A.String s="hello": Sting t="good"; String k=s+t;B.Sting s="hello"; String t; t=s [3] + "one";C.Sting s="hello"; String standard=s.toUpperCase( );D.String s="hello": Stringt s +"good";

下列的哪个程序段可能导致错误?A.String s = "hello"; String t = "good"; String k = s + t;B.String s = "hello"; String t; t = s[3] + "one";C.String s = " hello "; String standard = s.toUpperCase( );D.String s = "hello"; String t = s + "good";

下面的哪些程序片断可能导致错误() A、String s = "Gone with the wind";  String t = " good ";  String k = s + t;B、String s = "Gone with the wind";  String t;  t = s[3] + "one";C、String s = "Gone with the wind";  String standard = s.toUpperCase();D、String s = "home directory"; String t = s - "directory"

下面哪段语法执行正确()A、 String s = "Gone with the wind";String t = " good ";String k = s + t;B、 String s = "Gone with the wind";String t; t = s[3] + "one";C、 String s = "Gone with the wind";String standard = s.toUpperCase();D、 String s = "home directory";String t = s - "directory";

下面哪个是对字符串String的正确定义()。A、String s1=null;B、String s2=’null’;C、String s3=(String)‘abc’;D、String s4=(String)‘/uface’;

Strings="This is the";Stringt=s.concat("String.");t的内容是()A、This is the StringB、This is theC、String

有语句String s=”hello world”; ,以下操作哪个是不合法的()A、int i=s.length();B、s=3;C、String ts=s.trim();D、String t=s+”!”

String s= "hello";     String t = "hello";  char c[] = {’h’,’e’,’l’,’l’,’o’} ;     Which return true?()   A、 s.equals(t);B、 t.equals(c);C、 s==t;D、 t.equals(new String("hello"));E、 t==c;

Which of the following fragments might cause errors?()    A、 String s = "Gone with the wind";String t = " good ";String k = s + t;B、 String s = "Gone with the wind";String t;t = s[3] + "one";C、 String s = "Gone with the wind";String standard = s.toUpperCase();D、 String s = "home directory";String t = s - "directory";

单选题有语句String s=”hello world”; ,以下操作哪个是不合法的()Aint i=s.length();Bs=3;CString ts=s.trim();DString t=s+”!”

多选题下面的哪些程序片段可能导致错误()。AString s = “Gone with the wind”;  String t = “ good”;  String k = s + t;BString s = “Gone with the wind”;  String t;  t = s[3] + “one”;CString s = “Gone with the wind”;  String standard = s.toUpperCase();DString s = “home directory”;  String t = s – “directory”;

多选题Which of the following fragments might cause errors?()AString s = Gone with the wind;String t =  good ;String k = s + t;BString s = Gone with the wind;String t;t = s[3] + one;CString s = Gone with the wind;String standard = s.toUpperCase();DString s = home directory;String t = s - directory;

单选题执行语句“stringstr("abc");”时,系统会自动调用string类的构造函数()。Astring()Bstring(constchar*s)Cstring(conststringstr)Dstring(size_typen,charc)

单选题下面哪个是对字符串String的正确定义()。AString s1=null;BString s2=’null’;CString s3=(String)‘abc’;DString s4=(String)‘/uface’;