public static void main(String[] args) throws Exception { String s = "a"; ArrayList<String> array = new ArrayList<>(); int count = 0; try { while (true) { s += "a"; array.add(s); count++; } } catch (Exception e)
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...
JDK常用包 lang包:核心包,使用的时候不需要导入;例如String类、Math类、System类 util包:工具包,包含工具类、集合类等,例如Array、List、set等 net包:包含网络编程的类和接口 io:包含输入、输出编程相关的类和接口 text:包含格式化相关的类和接口 sql:数据库操作包 awt和swing:图形化相关 jdk各类包概述 代码语言...
publicclassStringArrayExample{publicstaticvoidmain(String[]args){// 声明一个字符串数组,大小为5String[]fruits=newString[5];// 将元素存储到数组中fruits[0]="apple";fruits[1]="banana";fruits[2]="orange";fruits[3]="grape";fruits[4]="watermelon";// 打印数组中的元素for(Stringfruit:fruits){...
publicstaticvoidmain(String[] args) {/** * 情景一:字符串池 * JAVA虚拟机(JVM)中存在着一个字符串池,其中保存着很多String对象; * 并且可以被共享使用,因此它提高了效率。 * 由于String类是final的,它的值一经创建就不可改变。 * 字符串池由String类维护,我们可以调用intern()方法来访问字符串池。*/St...
Check A String Is Palindrome Or Not Find Lowest Frequency Character In A String Highest Frequency Character In A String C Program To Sort Even And Odd Elements Of Array Convert Lowercase String To Uppercase Convert Uppercase String To Lowercase Count Number Of Vowels & Consonants In A String Me...
For example, reading a CSV file line and parsing them to get all the data to a String array. In this tutorial, we will learn how to convert String to Array in Java program. String to Array in Java String class split(String regex) can be used to convert String to array in java. If...
private static boolean stringContainsSubstring(String string, String substring) { boolean result = false; result = string.contains(substring); return result; } } Here is a sample output of above program: Enter First String: Pankaj Enter Second String: ...
{ 4: protected Object lockObject = new Object(); 5: static protected Map sharedMap; 6: protected int sharedInt = 1; 7: } 8: 9: // Main.java 10: import java.util.*; 11: public class Main extends Data { 12: public static void main(String args[]) { 13: Main m = new Main(...
public static void main(String[] args) { // 创建一个数组,里面可以存放300个int数据 // 格式:数据类型[] 数组名称 = new 数据类型[数组长度]; int[] arrayA = new int[300]; // 创建一个数组,能存放10个double类型的数据 double[] arrayB = new double[10]; // 创建一个数组,能存放5个字符串...