多項選擇題

Which statements are true concerning the effect of the >> and >>> operators?（）

A.For non-negative values of the left operand， the >> and >>> operators will have the same effect.
B.The result of （-1 >> 1） is 0.
C.The result of （-1 >>> 1） is -1.
D.The value returned by >>> will never be negative as long as the value of the right operand is equal to or greater than 1.
E.When using the >> operator， the leftmost bit of the bit representation of the resulting value will always be the same bit value as the leftmost bit of the bit representation of the left operand.

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多項選擇題

Given the following class， which statements can be inserted at position 1 without causing the code to fail compilation？（）
public class Q6db8 {
int a；
int b = 0；
static int c；
public void m（） {
int d；
int e = 0；
// Position 1
}
}

A.a++；
B.b++；
C.c++；
D.d++；
E.e++；

單項選擇題

If this source code is contained in a file called SmallProg.java， what command should be used to compile it using the JDK？（）
public class SmallProg {
public static void main（String args[]）
{ System.out.println（"Good luck!"）； } }

A.java SmallProg
B.avac SmallProg
C.javac SmallProg.java
D.java SmallProg main

Which statements are true concerning the effect of the >> and >>> operators?（）

你可能感興趣的試題

Given the following class， which statements can be inserted at position 1 without causing the code to fail compilation？（） public class Q6db8 { int a； int b = 0； static int c； public void m（） { int d； int e = 0； // Position 1 } }

If this source code is contained in a file called SmallProg.java， what command should be used to compile it using the JDK？（） public class SmallProg { public static void main（String args[]） { System.out.println（"Good luck!"）； } }

Given the following class， which statements can be inserted at position 1 without causing the code to fail compilation？（）
public class Q6db8 {
int a；
int b = 0；
static int c；
public void m（） {
int d；
int e = 0；
// Position 1
}
}

If this source code is contained in a file called SmallProg.java， what command should be used to compile it using the JDK？（）
public class SmallProg {
public static void main（String args[]）
{ System.out.println（"Good luck!"）； } }