java 判断字符串是否为数字
public static boolean NumiSStr(String str) {
double d = 0.0;
try {
d = Double.parseDouble(str);
}
catch (Exception e) {
}
return str.equals(""+d);
}
public static boolean NumiSStr(String str) {
double d = 0.0;
try {
d = Double.parseDouble(str);
}
catch (Exception e) {
}
return str.equals(""+d);
}