printArray(int[] array):用于打印基本类型int数组的元素。它将数组的每个元素用空格分隔,并打印在一行上。 以下是使用printArray方法的示例: import java.util.Arrays; public class Main { public static void main(String[] args) { Integer[] numbers = {1, 2, 3, 4, 5}; System.out.print("Numbers: ...
int[][] array1=new int[8][8]; array1[1][1]=3; array1[2][3]=3; array1[4][2]=5; array1[6][5]=6; for (int[] ints : array1) { for (int anInt : ints) { System.out.print(anInt+"\t"); } System.out.println(""); } int count=0; //遍历原数组,获取有效值个数...
publicstaticvoidsum(int[] arr){// Getting sum of array values.intsum =0;for(inti =0; i < arr.length; i++) sum += arr[i]; System.out.println("Sum of array values: "+ sum); }publicstaticvoidmain(String[] args){inta[] = {3,1,2,5,4};// Passing array to method sum.sum...
for(inti=1; i < array2.length; i++) { array3[array2[i][0]][array2[i][1]] = array2[i][2]; } 3、打印 System.out.println("输出还原的数组:");for(int[] ints:array3){for(intanint:ints){ System.out.print(anint+"\t"); } System.out.println(); } 运行结果 输出还原的...
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...
@Testpublicvoidtest(){long start=System.currentTimeMillis();int a=0;try{for(int i=0;i<1000000000;i++){a++;}}catch(Exception e){e.printStackTrace();}long useTime=System.currentTimeMillis()-start;System.out.println(useTime);}
import java.util.Scanner;public class Array {public static void main(String[] args) {Scanner stdIn = new Scanner(System.in); int rows, cols; // 行数与列数 System.out.print("Enter number of rows and columns" + " for the matrix: "); rows = stdIn.nextInt()...
for (int i=3; i>=0; i--) {try {int[] arr = new int[Integer.MAX_VALUE-i];System.out.format("Successfully initialized an array with %,d elements .\n", Integer.MAX_VALUE-i);} catch (Throwable t) {t.printStackTrace();}}JAVA ...
class ArrayDemo { public static void main(String[] args) { // declares an array of integers int[] anArray; // allocates memory for 10 integers anArray = new int[10]; // initialize first element anArray[0] = 100; // initialize second element ...
Applications can usePrinterJobto print 2D graphics to a printer or to an output stream. ThelookupPrintServicesmethod returns an array ofPrintServiceobjects, each of which represents a printer that can print 2D graphics. ThelookupStreamPrintServicesmethod returns an array ofStreamPrintServiceFactoryobjects...