单项选择题
public static void main(String[] args) {
for (int i=0;i<= 10;i++){
if( i>6) break;
}
System.out.println(i);
}
What is the result?()
A. 6
B. 7
C. 10
D. 11
E. Compilation fails.
F. An exception is thrown at runtime.
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单项选择题
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. -
单项选择题
int x= 10; do { x--; } while(x< 10); How many times will line 37 be executed?()
A. ten times
B. zero times
C. one to me times
D. more than ten times -
单项选择题
25.intx=12; 26. while (x < 10) { 27. x--; 28. } 29. System.out.print(x); What is the result?()
A. 0
B. 10
C. 12
D. Line 29 will never be reached.
