原文:分享非常有用的Java程序 (关键代码) (三)---创建ZIP和JAR文件 import java.util.zip.*; import java.io.*; public class ZipIt { public static void main(String args[]) throws IOException { if (args.length < 2) { System.err.println("usage: java ZipIt Zip.zip file1 file2 f…

下面是20个非常有用的Java程序片段,希望能对你有用. 1. 字符串有整型的相互转换 String a = String.valueOf(2); //integer to numeric string int i = Integer.parseInt(a); //numeric string to an int 2.向文件末尾添加内容 BufferedWriter out = null; try { out = new BufferedWriter(new FileWriter("filena…

下面是20个非常有用的Java程序片段,希望能对你有用. 1. 字符串有整型的相互转换 ? 1 2 String a = String.valueOf(2);   //integer to numeric string  int i = Integer.parseInt(a); //numeric string to an int 2. 向文件末尾添加内容 ? 1 2 3 4 5 6 7 8 9 10 11 BufferedWriter out = null;  try {      out =…

1. 字符串有整型的相互转换 1 2 String a = String.valueOf(2);   //integer to numeric string  int i = Integer.parseInt(a); //numeric string to an int 2. 向文件末尾添加内容 1 2 3 4 5 6 7 8 9 10 11 BufferedWriter out = null;  try {      out = new BufferedWriter(new FileWrite…

1. 字符串有整型的相互转换           Java   1 2 <strong>Stringa=String.valueOf(2);   //integer to numeric string   inti=Integer.parseInt(a);//numeric string to an int </strong> 2. 向文件末尾添加内容           Java   1 2 3 4 5 6 7 8 9 10 11 <strong>BufferedWr…

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1. 字符串有整型的相互转换 String a = String.valueOf(2); //integer to numeric string int i = Integer.parseInt(a); //numeric string to an int 2. 向文件末尾添加内容 BufferedWriter out = null; try { out = new BufferedWriter(new FileWriter(”filename”, true)); out.write(”aStr…

下面是20个非常有用的Java程序片段,希望能对你有用. 1.字符串有整型的相互转换 String a = String.valueOf(2); //integer to numeric string int i = Integer.parseInt(a); //numeric string to an int 2.向文件末尾添加内容 BufferedWriter out = null; try { out = new BufferedWriter(new FileWriter(”filenam…

1.字符串有整型的相互转换 String a = String.valueOf(2);//integer to numeric string Int i = Integer.parseInt(a);//numeric string to an int 2.向文件末尾添加内容 BufferedWriter out = null; try{ out = new BufferedWriter(new FileWriter(”filename”,true)); Out.write(”aString”);…

下面是20个非常有用的Java程序片段,希望能对你有用. 1. 字符串有整型的相互转换 String a = String.valueOf(2); //integer to numeric string int i = Integer.parseInt(a); //numeric string to an int 2. 向文件末尾添加内容 BufferedWriter out = null; try { out = new BufferedWriter(new FileWriter("filen…