public class testsplit{
public static void main(String args[]){
String s="1,2;3,4,5;6,7,8";
double d[][];
d=parseArray(s);
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();
} } public static double[][] parseArray(String s){
String str1[];
String str2[];
str1=s.split(";");
double d[][]=new double[str1.length][];
for(int i=0;i<str1.length;i++){
str2=str1[i].split(",");
for(int j=0;j<str2.length;j++){
d[i]=new double[str2.length];
d[i][j]=Double.parseDouble(str2[j]);
}
}
return d;
}
}
帮忙看一下,怎么打印的错了?
public static void main(String args[]){
String s="1,2;3,4,5;6,7,8";
double d[][];
d=parseArray(s);
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();
} } public static double[][] parseArray(String s){
String str1[];
String str2[];
str1=s.split(";");
double d[][]=new double[str1.length][];
for(int i=0;i<str1.length;i++){
str2=str1[i].split(",");
for(int j=0;j<str2.length;j++){
d[i]=new double[str2.length];
d[i][j]=Double.parseDouble(str2[j]);
}
}
return d;
}
}
帮忙看一下,怎么打印的错了?
public class testsplit {
public static void main(String args[]) {
String s = "1,2;3,4,5;6,7,8";
double d[][];
d = parseArray(s);
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();
} } public static double[][] parseArray(String s) {
String str1[];
String str2[];
str1 = s.split(";");
double d[][] = new double[str1.length][];
for (int i = 0; i < str1.length; i++) {
str2 = str1[i].split(",");
d[i] = new double[str2.length]; // 追加的代码
for (int j = 0; j < str2.length; j++) {
// d[i] = new double[str2.length]; 不应该在此地方new double
d[i][j] = Double.parseDouble(str2[j]);
}
}
return d;
}
}
String str1[];
String str2[];
str1 = s.split(";");
double d[][] = new double[str1.length][];
for (int i = 0; i < str1.length; i++) {
str2 = str1[i].split(",");
d[i] = new double[str2.length];
for (int j = 0; j < str2.length; j++) {
d[i][j] = Double.parseDouble(str2[j]);
}
}
return d;
}
for(int i=0;i<str1.length;i++)
{
for(int n=0;n<str1[i].split(",").length;n++)
{
sub = str1[i].split(",");
System.out.println(i+": "+sub[n]);
}
}
String str1[];
String str2[];
str1=s.split(";");
double d[][]=new double[str1.length][];
for(int i=0;i<str1.length;i++){
str2=str1[i].split(",");
d[i]=new double[str2.length];//这句话应该放j循环外面,否则每一次都new一次。
for(int j=0;j<str2.length;j++){
d[i][j]=Double.parseDouble(str2[j]);
}
}
return d;
}