publicclassMultipleConditions{publicstaticvoidmain(String[]args){intage=25;booleanhasDriverLicense=true;if(age>=18&&hasDriverLicense){System.out.println("您可以合法地驾驶车辆。");}elseif(age<18){System.out.println("您未满18岁,不能驾驶。");}else{System.out.println("您没有驾驶执照,无法驾驶。"...
public class MultipleConditions { public static void main(String[] args) { int age = 25; boolean isEmployed = true; boolean hasDegree = false; if (age >= 18 && isEmployed && hasDegree) { System.out.println("用户已成年、已就业且有学位"); } else if (age >...
publicclassMultipleConditions{publicstaticvoidmain(String[]args){inta=10;// 条件a的值intb=20;// 条件b的值intc=30;// 条件c的值if(a>b){// 当a大于b时System.out.println("条件a大于b");}elseif(b>c){// 当b大于c时System.out.println("条件b大于c");}else{// 当没有其他条件满足时Syste...
This code does the same thing as our previous switch statement example, but it uses if-else statements instead. If-else statements are more flexible than switch statements because they can handle conditions that are not just equality checks. However, they can become unwieldy when there are many ...
And because conditions can only be exclusive, * we save a field by using special value to indicate shared * mode. */ Node nextWaiter; /** * Returns true if node is waiting in shared mode. */ final boolean isShared() { return nextWaiter == SHARED; } /** * Returns previous node,...
This feature allows you to use a switch statement to check whether an object is of a specific type (and, if necessary, satisfies additional conditions, as in the first case of String). It also allows you to cast this object simultaneously and implicitly to the target type. You can also ...
Prior to Java SE 7, properly closing multiple resources quickly turned into a nightmare of nested if/try/catch/finally blocks that were often hard to write correctly. A folder is then a simple tree-based structure: Copy Copied to Clipboard Error: Could not Copy class Folder { private final...
Secondly, even if a JIT had time to perform full optimization, such optimizations are less effective for the Java programming language than for traditional languages like C and C++. There are a number of reasons for this: The Java language is dynamicallysafe, meaning that it ensures that progra...
SecurityException- if a security manager,s, is present and any of the following conditions is met: the givenloaderisnulland the caller's class loader is notnulland the invocation ofs.checkPermissionwithRuntimePermission("getClassLoader")permission denies access; ...
This object can then be used to efficiently execute this statement multiple times. Note: The setter methods (setShort, setString, and so on) for setting IN parameter values must specify types that are compatible with the defined SQL type of the input parameter. For instance, if the IN ...