Strin类-split方法

//分解字符串public class Quit {public static void main(String[] args){double[][] d;String s="1,2;3,4,5;6,7,8,9";String[] sFirst=s.split(";");//以";"为分隔符d= new double[sFirst.length][];for(int i=0;i<sFirst.length;i++){String[] sSecond =sFirst[i].split(",");d[i]=new double[sSecond.length];for(int j=0;j<sSecond.length;j++){//d[i]=new double[sSecond.length];//字符串转成double类型的数字   d[i][j]=Double.parseDouble(sSecond[j]);}}for(int i=0;i<d.length;i++){for(int j=0;j<d[i].length;j++){System.out.print(d[i][j]+" ");}System.out.println();}}}