publicclassArrayReturnExample{// 生成一个包含0到n的整数数组publicstaticint[]generateArray(intn){int[]array=newint[n];for(inti=0;i<n;i++){array[i]=i;}returnarray;}publicstaticvoidmain(String[]args){intn=10;int[]resultArray=generateArray(n);// 打印返回的数组System.out.println("生成的...
publicstaticreturnType[]methodName(){// 创建并初始化数组returnType[]array=newreturnType[arrayLength];// 数组元素赋值returnarray;} 1. 2. 3. 4. 5. 6. 7. 8. 其中,returnType是数组元素的数据类型,methodName是方法的名称,arrayLength是数组的长度。在方法中,首先创建一个数组,然后为数组的元素赋值,...
// A Java program to demonstrate that a method // can return multiple values of same type by // returning an array classTest { // Returns an array such that first element // of array is a+b, and second element is a-b staticint[] getSumAndSub(inta,intb) { int[] ans =newint[...
returnmethod.invoke(owner, args); } Class owner_class = owner.getClass() :首先还是必须得到这个对象的Class。 5～9行:配置参数的Class数组,作为寻找Method的条件。 Method method = ownerClass.getMethod(methodName, argsClass):通过methodName和参数的argsClass(方法中的参数类型集合)数组得到要执行的Method。
Method.argSlotCount() - 1); 54 55 if (null == ref) { 56 57 if ("println".equals(methodRef.name())) { 58 59 \_println(frame.operandStack(), methodRef.descriptor()); 60 61 return; 62 63 } 64 65 throw new NullPointerException(); 66 67 } 68 69 70 71 if (resolvedMethod.is...
publicbooleanequals(Object anObject){if(this==anObject){returntrue;}if(anObjectinstanceofString){String anotherString=(String)anObject;int n=value.length;if(n==anotherString.value.length){char v1[]=value;char v2[]=anotherString.value;int i=0;while(n--!=0){if(v1[i]!=v2[i])returnfa...
public void method() { // some code here if (condition) { return; // 提前结束方法执行 } // some more code here } ```2. 返回值类型为非void 如果一个方法的返回值类型为非void，那么它必须返回一个值。在这种情况下，return语句可以被用来返回一个值，并提前结束方法的执行。例如：`...
{ Method[] methods = c1.getDeclaredMethods(); for(Method m : methods){ Class retType = m.getReturnType(); String name = m.getName(); System.out.print(" "); String modifiers = Modifier.toString(m.getModifiers()); if (modifiers.length() > 0) { System.out.print(modifiers + " "...
publicclassDatabaseSearchimplementsSearch{@OverridepublicList<String>searchDoc(String keyword){System.out.println("数据搜索 "+keyword);returnnull;}} resources 接下来可以在resources下新建META-INF/services/目录,然后新建接口全限定名的文件:com.cainiao.ys.spi.learn.Search,里面加上我们需要用到的实现类 ...
If thisClassobject represents a class or interface that implements no interfaces, the method returns an array of length 0. If thisClassobject represents a primitive type or void, the method returns an array of length 0. If thisClassobject represents an array type, the interfacesCloneableandjava...