JAVA认证历年真题：310-025精选题（50）

会计考友 · 发表于 2012-8-4 12:33:16

310-025精选题（50）的具体内容如下：
227. Consider the following code: What will be printed?
public class StringBufferTest{
public static void main(String[]args){
StringBuffer sb1 = new StringBuffer("Anna");
StringBuffer sb2 = new StringBuffer("Anna");
if (sb1.equals(sb2))
System.out.println("Equals");
else
System.out.println("StringBuffer Equals not");
String s1 = new String("Anna");
String s2 = new String("Anna");
if (s1.equals(s2))
System.out.println("String Equals");
else
System.out.println("Equals not");
}
}
A.
Equals
Equals not
B.
StringBuffer Equals not
String Equals
C.
Equals
String Equals
D.
StringBuffer Equals not
Equals not
B.
228. Consider the following code: What will be printed?
public class StringBufferTest2{
public static void main(String[]args){
String a, b;
StringBuffer c, d;
c = new StringBuffer("Kalle");
a = new String("Kalle");
b = a;
d = c;
StringBuffer e = new StringBuffer("Kalle");
String f = new String("Kalle");
if(b.equals(a))
System.out.println("b.equals(a)");
if(b==a)
System.out.println("b==a");
if(d.equals(c))
System.out.println("d.equals(c)");
if(d==c)
System.out.println("d==c");
if(f.equals(a))
System.out.println("f.equals(a)");
if(f==a)
System.out.println("f==a");
else
System.out.println("f!=a");
if(e.equals(c))
System.out.println("e.equals(c)");
else
System.out.println("e.equalsnot(c)");
if(e==c)
System.out.println("e==c");
else
System.out.println("e!=c");
}
}

会计考友 · 发表于 2012-8-4 12:33:17

A.
b.equals(a)
b==a
d.equals(c)
d==c
f.equals(a)
f!=a
e.equalsnot(c)
e!=c
B.
b.equals(a)
b==a
d.equals(c)
d==c
f!=a
e.equalsnot(c)
e!=c
C.
b.equals(a)
d.equals(c)
f.equals(a)
f==a
e.equals(c)
e!=c
D.
b==a
d==c
f.equals(a)
f!=a
e.equalsnot(c)
e==c
E.
b.equals(a)
b==a
d.equals(c)
d==c
f.equals(a)
e.equals(c)
e!=c
A.

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[考试试题] JAVA认证历年真题：310-025精选题（50）

JAVA认证历年真题：310-025精选题（50）

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