word¸ñʽ

A. СÓÚ 0 B. СÓÚ 4 C. 4 ºÍ9Ö®¼ä D. ´óÓÚ9 E. ÎÞÈκοÉÄÜ 10£©ÓÐÈçÏ´úÂë¶Î£º switch ( x ){

case 1:System.out.println(\ case 2:

case 3:System.out.println(\ default:System.out.println(\}

±äÁ¿xµÄÈ¡ÖµÏÂÁÐÄÄЩÇéÐÎʱ£¬ÄÜʹ³ÌÐòÊä³ö\¡£ A. 1 B. 2 C. 3 D. default 11£©ÒÔϳÌÐòµÄÊä³ö½á¹ûΪ public class test {

public static void main(String agrs[]) { char c1=¡¯B¡¯,c2=¡¯C¡¯; if (c1+1

A. B B. b C. C D. c

12) ¼ÙÉèaÊÇintÀàÐͱäÁ¿£¬²¢³õʼ»¯Îª1£¬ÔòÏÂÁÐÄĸöΪºÏ·¨µÄÌõ¼þÓï¾ä£¿ A. if (a) { } B. if (a<<3) { } C. if (a=2) { } D. if (true) { }

ËÄ¡¢Ñ­»·³ÌÐòÉè¼Æ

1£©Ö´ÐÐÒÔϳÌÐòºó£¬Êä³ö½á¹ûΪ public class ex2{

public static void main(String args[]) { int f=1; int k;

for (k=2;k<5;k++) f*=k;;

System.out.println(k);

.. ..

word¸ñʽ

} }

A. 0 B. 1 C. 5 D. 4 E. 24 2£© ÉèÓÐÈçÏÂÀà class Loop{

public static void main(String[] agrs) { int x=0;int y=0; outer:

for(x=0;x<100;x++){ middle:

for(y=0;y<100;y++){

System.out.println(\ if(y==10){ <<>> } } } } }

ÔÚ<<>>´¦²åÈëʲô´úÂë¿ÉÒÔ½áÊøÍâÑ­»·? A£®continue middle; B£®break outer; C£®break middle; D£®continue outer; E£®none of these

3£©ÒÔÏ´úÂëµÄÔËÐнá¹ûΪ£º public class Calc {

public static void main (String args []) { int total = 0;

for (int i = 0, j = 10; total > 30; ++i, --j) { System.out.println(\ total += (i + j); }

System.out.println(\ } }

A. ²úÉúÔËÐдíÎó

.. ..

word¸ñʽ

B. ²úÉú±àÒë´íÎó C. Êä³ö \D. ²úÉúÈçÏÂÊä³ö: i = 0 : j = 10 i = 1 : j = 9 i = 2 : j = 8 Total 30

4£©ÒÔϳÌÐòµÄÔËÐнá¹ûΪ: public class test {

public static void main(String args[]) { int i=0, j=2; do { i=++i; j--; } while(j>0);

System.out.println(i); } }

A. 0 B. 1 C. 2 £Ä.3 5£©ÒÔϳÌÐòµÄÔËÐнá¹ûΪ£¿ class xyz {

public static void main(String args[]) { int i,j,k;

for (i = 0; i < 3; i++) { for(j=1; j < 4; j++) { for(k=2; k<5; k++) {

if((i == j) && (j==k)) System.out.println(i); } } } } }

A. 0 B. 1 C. 2 D. 3 E. 4 6£© ÒÔϳÌÐòµÄÔËÐнá¹ûΪ£¿

.. ..

word¸ñʽ

class test {

public static void main(String args[]) { int i,j=0;

for(i=10;i<0;i--) { j++; } switch(j) {

case (0) : j=j+1; case (1) : j=j+2; break; case (2) : j=j+3; break; case (10) : j=j+10; break; default : break; }

System.out.println(j); } }

A. 0 B. 1 C. 2 D. 3 E. 10 7£© ¹Û²ìÒÔϳÌÐò¶Î: int i=1,j=10; do{

if(i++>--j) continue; } while(i<5);

Ö´ÐÐÍêºó£¬i¡¢jµÄÖµ·Ö±ðΪ£º A£® i=6 j=5 B£® i=5 j=5 C£® i=6 j=4 D£® i=5 j=6 8£©ÒÔϳÌÐòµÄÊä³ö½á¹ûΪ: public class example {

public static void main(String args[]) { int s=0;

for (int i=0;i<5;i++) { for (int j=10;j>3*i;j--) s += i*j; }

System.out.println(s); } }

A. 127 B.136 C. 147 D.153

.. ..