JAVA题库：最新java试题测试(1)Java认证考试

文章作者 100test 发表时间 2009:04:30 07:58:45
来源 100Test.Com百考试题网

第一部分：选择题
question no: 1
1、public class test {
public static void changestr(string str){
str="welcome".
}
public static void main(string[] args) {
string str="1234".
changestr(str).
system.out.println(str).
}
}
please write the output result ：

question no:2
1. public class test {
2. static boolean foo(char c) {
3. system.out.print(c).
4. return true.
5. }
6. public static void main( string[] argv ) {
7. int i =0.
8. for ( foo(’a’). foo(’b’)&.&.(i<.2). foo(’c’)){
9. i .
10. foo(’d’).
12. }
13. }
14. }
what is the result?
a. abdcbdcb
b. abcdabcd
c. compilation fails.
d. an exception is thrown at runtime.