to make 2 lines into 1 line using awk


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# 1  
Java to make 2 lines into 1 line using awk

suppose i have a file
AAAHHHHAHH
AJJJJAAAAAA
AJJJJJAAJJAK
AJJAJJAJKKK
the output suhd be
AAAHHHHAHHAJJJJAAAAAAAJJJJJAAJJAKAJJAJJAJKKK
# 2  
Code:
tr -d '\n' < file > newfile

# 3  
Code:
awk 'BEGIN{ORS=""}1' "file" > newfile

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