问题描述
- 关于从jtabl中取数,跪求答案啊 50C
- int row=-1;
for(int i=0;i<v.length;i++){
for(int j=0;j<v[i].length;j++){
for(int k=0;k<v[i][j].length;k++){
for(int l=0;l<v[i][j][k].length;l++){
//v[i][j][k][l]=new Variable();
v[i][j][k][l]=new Variable();
row++;
v[i][j][k][l].setTheta(Double.parseDouble((String)tableModel.getValueAt(row 0)));
v[i][j][k][l].setTal(Double.parseDouble((String)tableModel.getValueAt(row 1)));
v[i][j][k][l].setDegreeOfMembership(Double.parseDouble((String)tableModel.getValueAt(row 2)));
v[i][j][k][l].setNonDegreeOfMembership(Double.parseDouble((String)tableModel.getValueAt(row 3)));
}
}
}
}求大家看一下为什么报空指针异常,我想从jtable中取数然后放到对象中
解决方案
看下是哪一行报错,像强制类型转换,字符串转数字,模型取值这些都可能出错。
时间: 2024-09-17 03:17:28