Rows into Columns in Oracle

Hi Team,
Convert rows into columns

Table1
hostname parameter             value
localhost    cpu_count             16
localhost    db_unique_name sams
localhost sga_max_size           34359738368
localhost sga_target                 30064771072
localhost shared_pool_size      2147483648

I want to display as
hostname  cpu_count  db_unique_name sga_max_size   sga_target         shared_pool_size
localhost     16                sams                       34359738368   30064771072   2147483648

I tried with decode does not work , because the column values are dynamic it keeps changing. Any help is really appreciated.