importjava.io.*;publicclassMain{publicstaticvoidmain(String[]args)throws IOException{BufferedReader reader=newBufferedReader(newInputStreamReader(System.in));String[]strs=reader.readLine().split(" ");int res=0;for(int i=0;i<strs.length;++i){res+=Integer.parseInt(strs[i]);}System.out.pri...
这个是可以导致Exception in thread "main" java.lang.OutOfMemoryError: Java heap space 的代码: public class TestGC { private String largeString = new String(new byte[100000]); String getString() { return this.largeString.substring(0, 2);//在JDK6里会导致out of memory,在JDK7和8不会出现问...
import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); String s = sc.nextLine(); System.out.println(s.substring(0, 2)); System.out.println(s.substring(2)); sc.close(); } } 从控制台输入:saahdfasgfdga...
importjava.util.Scanner;publicclassSubstringExample{publicstaticvoidmain(String[]args){Scannerscanner=newScanner(System.in);System.out.print("请输入字符串: ");StringinputString=scanner.nextLine();System.out.print("请输入要截取的位数: ");intn=scanner.nextInt();intlength=inputString.length();intst...
你了解Java中String的substring函数吗? Java中的substring函数是我们经常使用的一个函数,用来截取当前字符串的子串,定义如下: publicfinalclassString{publicString substring(intbeginIndex);publicString substring(intbeginIndex,intendIndex); } 使用及声明都非常简单,但是你了解其中的细节吗?
In this tutorial, we will learn about the Java String substring() method with the help of examples. In this tutorial, you will learn about the Java String substring() method with the help of examples.
jdk1.7版本String.java文件中关于substring的代码及描述 1/**2* Returns a new string that is a substring of this string. The3* substring begins with the character at the specified index and4* extends to the end of this string. 5* Examples:6* <blockquote>7* "unhappy".substring(2) returns...
JAVA中截取字符串substring⽤法详解 substring public String substring(int beginIndex)返回⼀个新的字符串，它是此字符串的⼀个⼦字符串。该⼦字符串始于指定索引处的字符，⼀直到此字符串末尾。例如："unhappy".substring(2) returns "happy""Harbison".substring(3) returns "bison""emptiness".substring(...
StringUtils.substring("china", -2); // na 指定的截取位置为-2,则从右往左第⼆位开始截取 StringUtils.substring("china", -2, -4); // in Java截取字符串(substring) Java截取字符串(substring) java为字符串截取提供了substring⽅法。 1.⽅法⼀: public String substring(int beginIndex, int en...
Exception in thread "main" java.lang.OutOfMemoryError: Java heap space at java.lang.StringCoding$StringDecoder.decode(StringCoding.java:133) at java.lang.StringCoding.decode(StringCoding.java:173) at java.lang.StringCoding.decode(StringCoding.java:185)1234 ...