Posted on 2006-06-08 23:07
☆藍色夢想☆ 閱讀(1234)
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J2SE
我只把自己常用的數(shù)據(jù)類型互相轉(zhuǎn)換做成了一個類，大家也可以根據(jù)自己的需要把其他的各種情況中用到的轉(zhuǎn)換方法補充進來使其更實用更強大
代碼內(nèi)容
/*
* Created on 2005-6-6
* Made In GamVan
*/
package com.gamvan.tools;
public class TypeChange {
public static String nullOfString(String str){
if(str==null){
str = "";
}
return str;
}
public static byte stringToByte(String str){
byte b = 0;
if(str!=null){
try{
b = Byte.parseByte(str);
}catch(Exception e){
}
}
return b;
}
public static boolean stringToBoolean(String str){
if(str==null){
return false;
}else{
if(str.equals("1")){
return true;
}else if(str.equals("0")){
return false;
}else{
try{
return Boolean.parseBoolean(str);
}catch(Exception e){
return false;
}
}
}
}
public static int stringToInt(String str){
int i=0;
if(str!=null){
try{
i = Integer.parseInt(str.trim());
}catch(Exception e){
i = 0;
}
}else{
i = 0;
}
return i;
}
public static short stringToShort(String str){
short i=0;
if(str!=null){
try{
i = Short.parseShort(str.trim());
}catch(Exception e){
i = 0;
}
}else{
i = 0;
}
return i;
}
public static double stringToDouble(String str){
double i=0;
if(str!=null){
try{
i = Double.parseDouble(str.trim());
}catch(Exception e){
i = 0;
}
}else{
i = 0;
}
return i;
}
public static String intToString(int i){
String str = "";
try{
str = String.valueOf(i);
}catch(Exception e){
str = "";
}
return str;
}
public static long doubleToLong(double d){
long lo=0;
try{
//double轉(zhuǎn)換成long前要過濾掉double類型小數(shù)點后數(shù)據(jù)
lo = Long.parseLong(String.valueOf(d).substring(0,String.valueOf(d).lastIndexOf(".")));
}catch(Exception e){
lo=0;
}
return lo;
}
public static int doubleToInt(double d){
int i=0;
try{
//double轉(zhuǎn)換成long前要過濾掉double類型小數(shù)點后數(shù)據(jù)
i = Integer.parseInt(String.valueOf(d).substring(0,String.valueOf(d).lastIndexOf(".")));
}catch(Exception e){
i=0;
}
return i;
}
public static double longToDouble(long d){
double lo=0;
try{
lo = Double.parseDouble(String.valueOf(d));
}catch(Exception e){
lo=0;
}
return lo;
}
public static int longToInt(long d){
int lo=0;
try{
lo = Integer.parseInt(String.valueOf(d));
}catch(Exception e){
lo=0;
}
return lo;
}
public static long stringToLong(String str) {
Long li = new Long(0);
try{
li = Long.valueOf(str);
}catch(Exception e){
//li = new Long(0);
}
return li.longValue();
}
public static String longToString(long li) {
String str = "";
try{
str = String.valueOf(li);
}catch(Exception e){
}
return str;
}
} |
相信大家都能看懂，這里就不解釋了，關(guān)于使用我舉個例子字符串轉(zhuǎn)換成Int類型? 如下
代碼內(nèi)容
int i = TypeChange.stringToInt("213324"); |