Some problem

ProblemB.java

//Enter the input as commandline arguments
public class Problem_B{
public static void main(String args[]){
//System.out.println("Positive Sum");
//if(args[0]=='')System.out.println("Please Enter Commandline Arguments");
if(args[0].charAt(0)=='-')System.out.println("Enter Positive No. of Test Cases");
int Test_Cases=Integer.parseInt(args[0].substring(0,1));
//System.out.println(args[0].substring(0,1));
int T[]=new int[Test_Cases];
if(args[0].charAt(1)=='-' || args[0].charAt(2)=='-')System.out.println("Enter Positive count of numbers in 1st Test Case");
T[0]=Integer.parseInt(args[0].substring(1,2));
for(int k=1;k<Test_Cases;k++){
if(args[k].charAt(0)=='-')continue;
T[k]=Integer.parseInt(args[k].substring(0,1));
}
int A[][]=new int[Test_Cases][];
for(int i=0;i<Test_Cases;i++){
A[i]=new int[T[i]];
}
for(int j=0;j<T[0];j++){
A[0][j]=Integer.parseInt(args[0].substring(j+2,j+3));
}
for(int l=0;l<Test_Cases;l++){
for(int m=0;m<T[l];m++){
A[l][m]=Integer.parseInt(args[l].substring(m,m+1));
}
}
//calculating sum
int sum[]=new int[Test_Cases];
for(int p=0;p<sum.length;p++){sum[p]=0;}

for(int n=0;n<Test_Cases;n++){
for(int o=0;o<A[n].length;o++){
if(A[n][o]>=0)
{sum[n]+=A[n][o];}
}
}

/*printing array
for(int n=0;n<Test_Cases;n++){
for(int o=0;o<A[n].length;o++){
System.out.println(A[n][o]);}
}
*/

//printing final
for(int q=0;q<sum.length;q++){System.out.println(sum[q]);}
}
}