A.1 2 3 4
B.1 3 4
C.编译错误
D.以上都不是
[单选题]下面程序的正确输出是( )。 public class Hello { public static void main(String args[]) { int count, xPos = 25; for ( count = 1; count <= 10; count++ ) { if ( count == 5 ) break; System.out.println(count ); xPos += 10; } } }A.1 2 3 4B.1 3 4C.编译错误D.以上都不是
[单选题]下面程序段的输出结果为 public class MyClass { public static void main(String args[]) { String s="Helto! How are you?"; System.out.println(s.lastlndexOf("o",16)); } }A.16B.oC.uD.17
[单选题]下面程序段的输出结果是( )。 public class TeSt{ public static voidmain(Stringargs[]){ int[]a=new int[11]; int[]p=new int[4]; intk=5; for(int i=1;i<=10;i++) a[i]=i; for(inti=1;i<=3;i++) p[i]=a[i*i]; for(inti=1;i<=3;i++) k=k+p[i]*2; System.out.println(k); } }A.37B.
[单选题]阅读下面程序 public class ConcatTest { public static void main(String[] args) { String str1="abc"; String str2="ABC": String str3=str1.concat(str2); System.out.println(str3); } } 程序运行的结果是A.abcB.ABCC.abcABCD.ABCabc
[单选题]请阅读下面程序 public class ThreadTest{ public static void main(String args[]) ( Thread t1=new Thread(new Hello()); Thread t2=new Thread(new Hello()); t1.start(); t2.start(); } } class Hello implements Runnable { int i; public void run() { while(true) { Sys
[判断题]有下面程序段: Public class ArrayTest { Public static void main(String args[]) { int[] intArray=new int[3]; for(int I=0;I<3;I++) { intArray[I]=I+2; System.out.println("IntArray["+I+"]"-"+intArray[I]); } System.out.println("------------"); Int arrLen=
[单选题]请阅读下面程序 public class ThreadTest{ public static void main(String args[]) ( Thread t1=new Thread(new Hello()); Thread t2=new Thread(new Hello()); t1.start(); t2.start(); } } class Hello implements Runnable { int i; public void run() { while(true) { Sys
[单选题]下面程序的输出为( )。 public class Test { public static void main (String args[]) { int x,y; x=1; y=2; System.out.println("The output is"+x+y); } }A.The output is xyB.The output is 3C.The output is 12D.The output is x=1 y=2
[单选题]下面程序的输出结果为( )。 public class Test { public static void main (String args[]) { String X="ABCD"; String Y="EFG"; X=X.substring (X.length()-Y.length()); System.out.println(X); } }A.ABCB.BCDC.EFGD.ABCDEFG
[单选题]以下程序的输出结果为( )。 public class Main { public static void main(String[] args) { int i=0, j=0, a=6; if((++i>0)||(++j>0)) a++; System.out.println( "i=" +i+", j ="+j+", a="+A; } }A.i=0, j=0, a=6B.i=1, j=1, a=7C.i=1, j=0, a=7D.i=0, j=1, a=7