ubuntu install netbeans and java

1.去這個網站下載java+netbeans的檔案
Download file from this website:
http://java.sun.com/javase/downloads/widget/jdk_netbeans.jsp

2.下載回來後按檔案右鍵->屬性->權限
將"允許檔案作為程式執行"打勾

3.雙擊檔案選執行,ok